diff --git a/src/contracts/artifacts/MortgageHelper.json b/src/contracts/artifacts/MortgageHelper.json
index 7cfec2d..f5ee910 100644
--- a/src/contracts/artifacts/MortgageHelper.json
+++ b/src/contracts/artifacts/MortgageHelper.json
@@ -1,6 +1,33 @@
 {
   "contractName": "MortgageHelper",
   "abi": [
+    {
+      "constant": false,
+      "inputs": [{ "name": "_engine", "type": "address" }],
+      "name": "setEngine",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [{ "name": "_requiredTotal", "type": "uint256" }],
+      "name": "setRequiredTotal",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [{ "name": "_to", "type": "address" }],
+      "name": "setOwner",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "constant": true,
       "inputs": [],
@@ -19,6 +46,24 @@
       "stateMutability": "view",
       "type": "function"
     },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "maxSpend",
+      "outputs": [{ "name": "", "type": "uint256" }],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [{ "name": "_manaOracle", "type": "address" }],
+      "name": "setManaOracle",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "constant": false,
       "inputs": [
@@ -32,6 +77,15 @@
       "stateMutability": "nonpayable",
       "type": "function"
     },
+    {
+      "constant": false,
+      "inputs": [{ "name": "_maxSpend", "type": "uint256" }],
+      "name": "setMaxSpend",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "constant": true,
       "inputs": [],
@@ -113,15 +167,6 @@
       "stateMutability": "view",
       "type": "function"
     },
-    {
-      "constant": false,
-      "inputs": [{ "name": "_to", "type": "address" }],
-      "name": "transferTo",
-      "outputs": [{ "name": "", "type": "bool" }],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
-    },
     {
       "constant": true,
       "inputs": [],
@@ -156,6 +201,15 @@
       "stateMutability": "view",
       "type": "function"
     },
+    {
+      "constant": false,
+      "inputs": [{ "name": "_mortgageManager", "type": "address" }],
+      "name": "setMortgageManager",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "constant": true,
       "inputs": [],
@@ -183,6 +237,15 @@
       "stateMutability": "nonpayable",
       "type": "function"
     },
+    {
+      "constant": false,
+      "inputs": [{ "name": "_landMarket", "type": "address" }],
+      "name": "setLandMarket",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "constant": false,
       "inputs": [{ "name": "_marginSpend", "type": "uint256" }],
@@ -196,8 +259,6 @@
       "inputs": [
         { "name": "_mortgageManager", "type": "address" },
         { "name": "_nanoLoanEngine", "type": "address" },
-        { "name": "_rcn", "type": "address" },
-        { "name": "_mana", "type": "address" },
         { "name": "_landMarket", "type": "address" },
         { "name": "_manaOracle", "type": "address" },
         { "name": "_tokenConverter", "type": "address" },
@@ -217,6 +278,100 @@
       ],
       "name": "NewMortgage",
       "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "engine", "type": "address" },
+        { "indexed": false, "name": "loanId", "type": "uint256" },
+        { "indexed": false, "name": "amount", "type": "uint256" }
+      ],
+      "name": "PaidLoan",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_prev", "type": "uint256" },
+        { "indexed": false, "name": "_new", "type": "uint256" }
+      ],
+      "name": "SetRebuyThreshold",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_prev", "type": "uint256" },
+        { "indexed": false, "name": "_new", "type": "uint256" }
+      ],
+      "name": "SetMarginSpend",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_prev", "type": "uint256" },
+        { "indexed": false, "name": "_new", "type": "uint256" }
+      ],
+      "name": "SetMaxSpend",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_prev", "type": "uint256" },
+        { "indexed": false, "name": "_new", "type": "uint256" }
+      ],
+      "name": "SetRequiredTotal",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_prev", "type": "address" },
+        { "indexed": false, "name": "_new", "type": "address" }
+      ],
+      "name": "SetTokenConverter",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_prev", "type": "address" },
+        { "indexed": false, "name": "_new", "type": "address" }
+      ],
+      "name": "SetConverterRamp",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_manaOracle", "type": "address" }],
+      "name": "SetManaOracle",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_engine", "type": "address" }],
+      "name": "SetEngine",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_landMarket", "type": "address" }],
+      "name": "SetLandMarket",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_mortgageManager", "type": "address" }],
+      "name": "SetMortgageManager",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_owner", "type": "address" }],
+      "name": "SetOwner",
+      "type": "event"
     }
   ]
 }
diff --git a/src/contracts/artifacts/MortgageManager.json b/src/contracts/artifacts/MortgageManager.json
index 35653ee..efdc9cf 100644
--- a/src/contracts/artifacts/MortgageManager.json
+++ b/src/contracts/artifacts/MortgageManager.json
@@ -3,33 +3,18 @@
   "abi": [
     {
       "constant": true,
-      "inputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "name": "mortgageByLandId",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
+      "inputs": [{ "name": "id", "type": "uint256" }],
+      "name": "getData",
+      "outputs": [{ "name": "o", "type": "bytes" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "pure",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [],
-      "name": "rcn",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
+      "inputs": [{ "name": "_interfaceID", "type": "bytes4" }],
+      "name": "supportsInterface",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
@@ -37,151 +22,65 @@
     {
       "constant": true,
       "inputs": [],
-      "name": "REQUIRED_ALLOWANCE",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
+      "name": "name",
+      "outputs": [{ "name": "_name", "type": "string" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "pure",
       "type": "function"
     },
     {
-      "constant": true,
-      "inputs": [
-        {
-          "name": "",
-          "type": "address"
-        },
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "name": "loanToLiability",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
+      "constant": false,
+      "inputs": [{ "name": "operator", "type": "address" }, { "name": "assetId", "type": "uint256" }],
+      "name": "approve",
+      "outputs": [],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
-      "constant": true,
-      "inputs": [],
-      "name": "totalMortgages",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
+      "constant": false,
+      "inputs": [
+        { "name": "engine", "type": "address" },
+        { "name": "loanIdentifier", "type": "bytes32" },
+        { "name": "deposit", "type": "uint256" },
+        { "name": "landMarket", "type": "address" },
+        { "name": "landId", "type": "uint256" },
+        { "name": "tokenConverter", "type": "address" }
       ],
+      "name": "requestMortgage",
+      "outputs": [{ "name": "id", "type": "uint256" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": false,
-      "inputs": [
-        {
-          "name": "token",
-          "type": "address"
-        },
-        {
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "name": "amountOrId",
-          "type": "uint256"
-        }
-      ],
-      "name": "withdrawTokens",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "inputs": [{ "name": "_to", "type": "address" }],
+      "name": "setOwner",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
     },
     {
-      "constant": true,
+      "constant": false,
       "inputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "name": "mortgages",
-      "outputs": [
-        {
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "name": "engine",
-          "type": "address"
-        },
-        {
-          "name": "loanId",
-          "type": "uint256"
-        },
-        {
-          "name": "deposit",
-          "type": "uint256"
-        },
-        {
-          "name": "landId",
-          "type": "uint256"
-        },
-        {
-          "name": "landCost",
-          "type": "uint256"
-        },
-        {
-          "name": "status",
-          "type": "uint8"
-        },
-        {
-          "name": "approvedTransfer",
-          "type": "address"
-        },
-        {
-          "name": "tokenChanger",
-          "type": "address"
-        }
+        { "name": "", "type": "address" },
+        { "name": "", "type": "address" },
+        { "name": "_tokenId", "type": "uint256" },
+        { "name": "", "type": "bytes" }
       ],
+      "name": "onERC721Received",
+      "outputs": [{ "name": "", "type": "bytes4" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [
-        {
-          "name": "",
-          "type": "address"
-        },
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
-      "name": "lockedERC721",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "inputs": [{ "name": "", "type": "uint256" }],
+      "name": "mortgageByLandId",
+      "outputs": [{ "name": "", "type": "uint256" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
@@ -189,13 +88,8 @@
     {
       "constant": true,
       "inputs": [],
-      "name": "landMarket",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
+      "name": "totalSupply",
+      "outputs": [{ "name": "", "type": "uint256" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
@@ -203,46 +97,30 @@
     {
       "constant": true,
       "inputs": [],
-      "name": "land",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
+      "name": "rcn",
+      "outputs": [{ "name": "", "type": "address" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": true,
-      "inputs": [],
-      "name": "owner",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
+      "constant": false,
+      "inputs": [{ "name": "to", "type": "address" }, { "name": "amount", "type": "uint256" }],
+      "name": "withdrawEth",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": false,
       "inputs": [
-        {
-          "name": "_to",
-          "type": "address"
-        }
-      ],
-      "name": "transferTo",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
+        { "name": "from", "type": "address" },
+        { "name": "to", "type": "address" },
+        { "name": "assetId", "type": "uint256" }
       ],
+      "name": "transferFrom",
+      "outputs": [],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
@@ -250,307 +128,189 @@
     {
       "constant": true,
       "inputs": [],
-      "name": "mana",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
+      "name": "REQUIRED_ALLOWANCE",
+      "outputs": [{ "name": "", "type": "uint256" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [],
-      "name": "MANA_CURRENCY",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bytes32"
-        }
-      ],
+      "inputs": [{ "name": "operator", "type": "address" }, { "name": "assetId", "type": "uint256" }],
+      "name": "isAuthorized",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": true,
+      "constant": false,
+      "inputs": [{ "name": "engine", "type": "address" }, { "name": "authorized", "type": "bool" }],
+      "name": "setEngine",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
       "inputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
-      "name": "lockedERC20",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
+        { "name": "engine", "type": "address" },
+        { "name": "landMarket", "type": "address" },
+        { "name": "loanId", "type": "uint256" },
+        { "name": "deposit", "type": "uint256" },
+        { "name": "landId", "type": "uint256" },
+        { "name": "tokenConverter", "type": "address" }
       ],
+      "name": "requestMortgageId",
+      "outputs": [{ "name": "id", "type": "uint256" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [],
-      "name": "VERSION",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
+      "inputs": [{ "name": "", "type": "address" }, { "name": "", "type": "uint256" }],
+      "name": "loanToLiability",
+      "outputs": [{ "name": "", "type": "uint256" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
+      "constant": false,
       "inputs": [
-        {
-          "name": "_rcn",
-          "type": "address"
-        },
-        {
-          "name": "_mana",
-          "type": "address"
-        },
-        {
-          "name": "_land",
-          "type": "address"
-        },
-        {
-          "name": "_landMarket",
-          "type": "address"
-        }
+        { "name": "from", "type": "address" },
+        { "name": "to", "type": "address" },
+        { "name": "assetId", "type": "uint256" }
       ],
+      "name": "safeTransferFrom",
+      "outputs": [],
       "payable": false,
       "stateMutability": "nonpayable",
-      "type": "constructor"
-    },
-    {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "name": "_id",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "_borrower",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_engine",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_loanId",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "_landId",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "_deposit",
-          "type": "uint256"
-        }
-      ],
-      "name": "RequestedMortgage",
-      "type": "event"
+      "type": "function"
     },
     {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "name": "_id",
-          "type": "uint256"
-        }
-      ],
-      "name": "StartedMortgage",
-      "type": "event"
+      "constant": false,
+      "inputs": [{ "name": "id", "type": "uint256" }, { "name": "data", "type": "string" }],
+      "name": "updateLandData",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
     },
     {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "name": "_id",
-          "type": "uint256"
-        }
-      ],
-      "name": "CanceledMortgage",
-      "type": "event"
+      "constant": true,
+      "inputs": [{ "name": "engine", "type": "address" }, { "name": "index", "type": "uint256" }],
+      "name": "isDefaulted",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
     },
     {
-      "anonymous": false,
+      "constant": true,
       "inputs": [
-        {
-          "indexed": false,
-          "name": "_id",
-          "type": "uint256"
-        }
+        { "name": "", "type": "address" },
+        { "name": "", "type": "uint256" },
+        { "name": "", "type": "bytes" },
+        { "name": "", "type": "bytes" }
       ],
-      "name": "PaidMortgage",
-      "type": "event"
+      "name": "cost",
+      "outputs": [{ "name": "", "type": "uint256" }],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
     },
     {
-      "anonymous": false,
+      "constant": false,
       "inputs": [
-        {
-          "indexed": false,
-          "name": "_id",
-          "type": "uint256"
-        }
+        { "name": "_tokenId", "type": "uint256" },
+        { "name": "", "type": "address" },
+        { "name": "", "type": "bytes" }
       ],
-      "name": "DefaultedMortgage",
-      "type": "event"
+      "name": "onERC721Received",
+      "outputs": [{ "name": "", "type": "bytes4" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
     },
     {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": false,
-          "name": "boughtMana",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "propertyCost",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "totalTokens",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "rest",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "name": "balance",
-          "type": "uint256"
-        }
-      ],
-      "name": "Debug",
-      "type": "event"
+      "constant": true,
+      "inputs": [],
+      "name": "url",
+      "outputs": [{ "name": "", "type": "string" }],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
     },
     {
-      "anonymous": false,
+      "constant": false,
       "inputs": [
-        {
-          "indexed": true,
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_to",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_tokenId",
-          "type": "uint256"
-        }
+        { "name": "token", "type": "address" },
+        { "name": "to", "type": "address" },
+        { "name": "amount", "type": "uint256" }
       ],
-      "name": "Transfer",
-      "type": "event"
+      "name": "withdrawTokens",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
     },
     {
-      "anonymous": false,
-      "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_approved",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "Approval",
-      "type": "event"
+      "constant": true,
+      "inputs": [{ "name": "assetId", "type": "uint256" }],
+      "name": "ownerOf",
+      "outputs": [{ "name": "", "type": "address" }],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
     },
     {
-      "anonymous": false,
+      "constant": false,
       "inputs": [
-        {
-          "indexed": true,
-          "name": "_owner",
-          "type": "address"
-        },
-        {
-          "indexed": true,
-          "name": "_operator",
-          "type": "address"
-        },
-        {
-          "indexed": false,
-          "name": "_approved",
-          "type": "bool"
-        }
+        { "name": "token", "type": "address" },
+        { "name": "to", "type": "address" },
+        { "name": "id", "type": "uint256" }
       ],
-      "name": "ApprovalForAll",
-      "type": "event"
+      "name": "withdrawErc721",
+      "outputs": [{ "name": "", "type": "bool" }],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
     },
     {
-      "constant": true,
-      "inputs": [],
-      "name": "name",
-      "outputs": [
-        {
-          "name": "_name",
-          "type": "string"
-        }
-      ],
+      "constant": false,
+      "inputs": [{ "name": "creator", "type": "address" }, { "name": "authorized", "type": "bool" }],
+      "name": "setCreator",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [],
-      "name": "symbol",
-      "outputs": [
-        {
-          "name": "_symbol",
-          "type": "string"
-        }
-      ],
+      "inputs": [{ "name": "owner", "type": "address" }],
+      "name": "balanceOf",
+      "outputs": [{ "name": "", "type": "uint256" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [],
-      "name": "totalSupply",
+      "inputs": [{ "name": "", "type": "uint256" }],
+      "name": "mortgages",
       "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
+        { "name": "landMarket", "type": "address" },
+        { "name": "owner", "type": "address" },
+        { "name": "engine", "type": "address" },
+        { "name": "loanId", "type": "uint256" },
+        { "name": "deposit", "type": "uint256" },
+        { "name": "landId", "type": "uint256" },
+        { "name": "landCost", "type": "uint256" },
+        { "name": "status", "type": "uint8" },
+        { "name": "tokenConverter", "type": "address" }
       ],
       "payable": false,
       "stateMutability": "view",
@@ -558,19 +318,9 @@
     },
     {
       "constant": true,
-      "inputs": [
-        {
-          "name": "_owner",
-          "type": "address"
-        }
-      ],
-      "name": "balanceOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
+      "inputs": [],
+      "name": "land",
+      "outputs": [{ "name": "", "type": "address" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
@@ -578,133 +328,48 @@
     {
       "constant": true,
       "inputs": [],
-      "name": "url",
-      "outputs": [
-        {
-          "name": "",
-          "type": "string"
-        }
-      ],
+      "name": "owner",
+      "outputs": [{ "name": "", "type": "address" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": true,
+      "constant": false,
       "inputs": [
-        {
-          "name": "_tokenId",
-          "type": "uint256"
-        }
-      ],
-      "name": "tokenMetadata",
-      "outputs": [
-        {
-          "name": "",
-          "type": "string"
-        }
+        { "name": "engine", "type": "address" },
+        { "name": "loanId", "type": "uint256" },
+        { "name": "", "type": "bytes" }
       ],
+      "name": "claim",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
-      "stateMutability": "view",
+      "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [
-        {
-          "name": "",
-          "type": "address"
-        },
-        {
-          "name": "",
-          "type": "uint256"
-        },
-        {
-          "name": "",
-          "type": "bytes"
-        },
-        {
-          "name": "",
-          "type": "bytes"
-        }
-      ],
-      "name": "cost",
-      "outputs": [
-        {
-          "name": "",
-          "type": "uint256"
-        }
-      ],
+      "inputs": [{ "name": "", "type": "address" }],
+      "name": "creators",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "engine",
-          "type": "address"
-        },
-        {
-          "name": "loanIdentifier",
-          "type": "bytes32"
-        },
-        {
-          "name": "deposit",
-          "type": "uint256"
-        },
-        {
-          "name": "landId",
-          "type": "uint256"
-        },
-        {
-          "name": "tokenChanger",
-          "type": "address"
-        }
-      ],
-      "name": "requestMortgage",
-      "outputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
+      "constant": true,
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [{ "name": "_symbol", "type": "string" }],
       "payable": false,
-      "stateMutability": "nonpayable",
+      "stateMutability": "pure",
       "type": "function"
     },
     {
       "constant": false,
-      "inputs": [
-        {
-          "name": "engine",
-          "type": "address"
-        },
-        {
-          "name": "loanId",
-          "type": "uint256"
-        },
-        {
-          "name": "deposit",
-          "type": "uint256"
-        },
-        {
-          "name": "landId",
-          "type": "uint256"
-        },
-        {
-          "name": "tokenChanger",
-          "type": "address"
-        }
-      ],
-      "name": "requestMortgageId",
-      "outputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
+      "inputs": [{ "name": "operator", "type": "address" }, { "name": "authorized", "type": "bool" }],
+      "name": "setApprovalForAll",
+      "outputs": [],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
@@ -712,18 +377,13 @@
     {
       "constant": false,
       "inputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
-      "name": "cancelMortgage",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
+        { "name": "from", "type": "address" },
+        { "name": "to", "type": "address" },
+        { "name": "assetId", "type": "uint256" },
+        { "name": "userData", "type": "bytes" }
       ],
+      "name": "safeTransferFrom",
+      "outputs": [],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
@@ -731,355 +391,222 @@
     {
       "constant": false,
       "inputs": [
-        {
-          "name": "engine",
-          "type": "address"
-        },
-        {
-          "name": "index",
-          "type": "uint256"
-        },
-        {
-          "name": "data",
-          "type": "bytes"
-        },
-        {
-          "name": "oracleData",
-          "type": "bytes"
-        }
+        { "name": "engine", "type": "address" },
+        { "name": "index", "type": "uint256" },
+        { "name": "data", "type": "bytes" },
+        { "name": "oracleData", "type": "bytes" }
       ],
       "name": "requestCosign",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
     },
     {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "engine",
-          "type": "address"
-        },
-        {
-          "name": "id",
-          "type": "uint256"
-        },
-        {
-          "name": "",
-          "type": "bytes"
-        }
-      ],
-      "name": "claim",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "constant": true,
+      "inputs": [],
+      "name": "mana",
+      "outputs": [{ "name": "", "type": "address" }],
       "payable": false,
-      "stateMutability": "nonpayable",
+      "stateMutability": "view",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [
-        {
-          "name": "engine",
-          "type": "address"
-        },
-        {
-          "name": "index",
-          "type": "uint256"
-        }
-      ],
-      "name": "isDefaulted",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "inputs": [{ "name": "", "type": "address" }],
+      "name": "engines",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "from",
-          "type": "address"
-        },
-        {
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
-      "name": "transferFrom",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "constant": true,
+      "inputs": [],
+      "name": "MANA_CURRENCY",
+      "outputs": [{ "name": "", "type": "bytes32" }],
       "payable": false,
-      "stateMutability": "nonpayable",
+      "stateMutability": "view",
       "type": "function"
     },
     {
       "constant": false,
-      "inputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
-      "name": "takeOwnership",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "inputs": [{ "name": "id", "type": "uint256" }],
+      "name": "cancelMortgage",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
     },
     {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "to",
-          "type": "address"
-        },
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
-      "name": "transfer",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "constant": true,
+      "inputs": [{ "name": "operator", "type": "address" }, { "name": "assetHolder", "type": "address" }],
+      "name": "isApprovedForAll",
+      "outputs": [{ "name": "", "type": "bool" }],
       "payable": false,
-      "stateMutability": "nonpayable",
+      "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": false,
-      "inputs": [
-        {
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
-      "name": "approve",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
-      ],
+      "constant": true,
+      "inputs": [{ "name": "assetId", "type": "uint256" }],
+      "name": "getApprovedAddress",
+      "outputs": [{ "name": "", "type": "address" }],
       "payable": false,
-      "stateMutability": "nonpayable",
+      "stateMutability": "view",
       "type": "function"
     },
     {
       "constant": false,
       "inputs": [
-        {
-          "name": "operator",
-          "type": "address"
-        },
-        {
-          "name": "approved",
-          "type": "bool"
-        }
-      ],
-      "name": "setApprovalForAll",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
+        { "name": "", "type": "address" },
+        { "name": "_tokenId", "type": "uint256" },
+        { "name": "", "type": "bytes" }
       ],
+      "name": "onERC721Received",
+      "outputs": [{ "name": "", "type": "bytes4" }],
       "payable": false,
       "stateMutability": "nonpayable",
       "type": "function"
     },
     {
       "constant": true,
-      "inputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
-      ],
-      "name": "getApproved",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
-      ],
+      "inputs": [],
+      "name": "VERSION",
+      "outputs": [{ "name": "", "type": "uint256" }],
       "payable": false,
       "stateMutability": "view",
       "type": "function"
     },
     {
-      "constant": true,
       "inputs": [
-        {
-          "name": "owner",
-          "type": "address"
-        },
-        {
-          "name": "operator",
-          "type": "address"
-        }
-      ],
-      "name": "isApprovedForAll",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
+        { "name": "_rcn", "type": "address" },
+        { "name": "_mana", "type": "address" },
+        { "name": "_land", "type": "address" }
       ],
       "payable": false,
-      "stateMutability": "view",
-      "type": "function"
+      "stateMutability": "nonpayable",
+      "type": "constructor"
     },
     {
-      "constant": true,
+      "anonymous": false,
       "inputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
+        { "indexed": false, "name": "_id", "type": "uint256" },
+        { "indexed": false, "name": "_borrower", "type": "address" },
+        { "indexed": false, "name": "_engine", "type": "address" },
+        { "indexed": false, "name": "_loanId", "type": "uint256" },
+        { "indexed": false, "name": "_landMarket", "type": "address" },
+        { "indexed": false, "name": "_landId", "type": "uint256" },
+        { "indexed": false, "name": "_deposit", "type": "uint256" },
+        { "indexed": false, "name": "_tokenConverter", "type": "address" }
       ],
-      "name": "ownerOf",
-      "outputs": [
-        {
-          "name": "",
-          "type": "address"
-        }
+      "name": "RequestedMortgage",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_oracle", "type": "address" },
+        { "indexed": false, "name": "_currency", "type": "bytes32" },
+        { "indexed": false, "name": "_decimals", "type": "uint256" },
+        { "indexed": false, "name": "_rate", "type": "uint256" }
       ],
-      "payable": false,
-      "stateMutability": "view",
-      "type": "function"
+      "name": "ReadedOracle",
+      "type": "event"
     },
     {
-      "constant": false,
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_id", "type": "uint256" }],
+      "name": "StartedMortgage",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
       "inputs": [
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "_tokenId",
-          "type": "uint256"
-        },
-        {
-          "name": "data",
-          "type": "bytes"
-        }
+        { "indexed": false, "name": "_from", "type": "address" },
+        { "indexed": false, "name": "_id", "type": "uint256" }
       ],
-      "name": "onERC721Received",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bytes4"
-        }
+      "name": "CanceledMortgage",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_from", "type": "address" },
+        { "indexed": false, "name": "_id", "type": "uint256" }
       ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
+      "name": "PaidMortgage",
+      "type": "event"
     },
     {
-      "constant": false,
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_id", "type": "uint256" }],
+      "name": "DefaultedMortgage",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
       "inputs": [
-        {
-          "name": "_tokenId",
-          "type": "uint256"
-        },
-        {
-          "name": "_from",
-          "type": "address"
-        },
-        {
-          "name": "data",
-          "type": "bytes"
-        }
+        { "indexed": false, "name": "_updater", "type": "address" },
+        { "indexed": false, "name": "_parcel", "type": "uint256" },
+        { "indexed": false, "name": "_data", "type": "string" }
       ],
-      "name": "onERC721Received",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bytes4"
-        }
+      "name": "UpdatedLandData",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": false, "name": "_creator", "type": "address" },
+        { "indexed": false, "name": "_status", "type": "bool" }
       ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
+      "name": "SetCreator",
+      "type": "event"
     },
     {
-      "constant": true,
+      "anonymous": false,
       "inputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        }
+        { "indexed": false, "name": "_engine", "type": "address" },
+        { "indexed": false, "name": "_status", "type": "bool" }
       ],
-      "name": "getData",
-      "outputs": [
-        {
-          "name": "o",
-          "type": "bytes"
-        }
+      "name": "SetEngine",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [{ "indexed": false, "name": "_owner", "type": "address" }],
+      "name": "SetOwner",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": true, "name": "_from", "type": "address" },
+        { "indexed": true, "name": "_to", "type": "address" },
+        { "indexed": false, "name": "_tokenId", "type": "uint256" }
       ],
-      "payable": false,
-      "stateMutability": "pure",
-      "type": "function"
+      "name": "Transfer",
+      "type": "event"
     },
     {
-      "constant": false,
+      "anonymous": false,
       "inputs": [
-        {
-          "name": "id",
-          "type": "uint256"
-        },
-        {
-          "name": "data",
-          "type": "string"
-        }
+        { "indexed": true, "name": "_owner", "type": "address" },
+        { "indexed": true, "name": "_approved", "type": "address" },
+        { "indexed": false, "name": "_tokenId", "type": "uint256" }
       ],
-      "name": "updateLandData",
-      "outputs": [
-        {
-          "name": "",
-          "type": "bool"
-        }
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        { "indexed": true, "name": "_owner", "type": "address" },
+        { "indexed": true, "name": "_operator", "type": "address" },
+        { "indexed": false, "name": "_approved", "type": "bool" }
       ],
-      "payable": false,
-      "stateMutability": "nonpayable",
-      "type": "function"
+      "name": "ApprovalForAll",
+      "type": "event"
     }
   ]
 }