diff --git a/docs/proto/proto-docs.md b/docs/proto/proto-docs.md
index 26057e216e..0b2a44eb15 100644
--- a/docs/proto/proto-docs.md
+++ b/docs/proto/proto-docs.md
@@ -8,6 +8,7 @@
     - [AbsoluteTxPosition](#cosmwasm.wasm.v1.AbsoluteTxPosition)
     - [AccessConfig](#cosmwasm.wasm.v1.AccessConfig)
     - [AccessTypeParam](#cosmwasm.wasm.v1.AccessTypeParam)
+    - [AllowedContract](#cosmwasm.wasm.v1.AllowedContract)
     - [CodeInfo](#cosmwasm.wasm.v1.CodeInfo)
     - [ContractCodeHistoryEntry](#cosmwasm.wasm.v1.ContractCodeHistoryEntry)
     - [ContractInfo](#cosmwasm.wasm.v1.ContractInfo)
@@ -138,6 +139,25 @@ AccessTypeParam
 
 
 
+<a name="cosmwasm.wasm.v1.AllowedContract"></a>
+
+### AllowedContract
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `contract_address` | [string](#string) |  | required |
+| `allowed_messages` | [string](#string) | repeated | optional |
+| `once` | [bool](#bool) |  | optional
+
+if true, the contract is only allowed to be called once |
+
+
+
+
+
+
 <a name="cosmwasm.wasm.v1.CodeInfo"></a>
 
 ### CodeInfo
@@ -203,8 +223,7 @@ the provided method on behalf of the granter's account.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| `target_contracts` | [string](#string) | repeated | Msg, identified by it's type URL, to grant unrestricted permissions to execute |
-| `allowed_functions` | [string](#string) | repeated |  |
+| `allowed_contracts` | [AllowedContract](#cosmwasm.wasm.v1.AllowedContract) | repeated |  |
 
 
 
diff --git a/proto/cosmwasm/wasm/v1/types.proto b/proto/cosmwasm/wasm/v1/types.proto
index 84cc385574..5cf6b6bdd4 100644
--- a/proto/cosmwasm/wasm/v1/types.proto
+++ b/proto/cosmwasm/wasm/v1/types.proto
@@ -14,11 +14,19 @@ option (gogoproto.equal_all) = true;
 message ExecuteContractAuthorization {
   option (cosmos_proto.implements_interface) = "Authorization";
 
-  // Msg, identified by it's type URL, to grant unrestricted permissions to execute
-  repeated string target_contracts = 1;
-  repeated string allowed_functions = 2;
+  repeated AllowedContract allowed_contracts = 1;
 }
 
+message AllowedContract {
+  // required
+  string contract_address = 1;
+
+  // optional
+  repeated string allowed_messages = 2;
+
+  // optional
+  bool once = 3; // if true, the contract is only allowed to be called once
+}
 
 // AccessType permission types
 enum AccessType {
diff --git a/x/wasm/types/types.go b/x/wasm/types/types.go
index b1d616353e..28163137ef 100644
--- a/x/wasm/types/types.go
+++ b/x/wasm/types/types.go
@@ -1,6 +1,8 @@
 package types
 
 import (
+	"encoding/base64"
+	"encoding/json"
 	"fmt"
 	"reflect"
 
@@ -27,9 +29,18 @@ var (
 	_ authztypes.Authorization = &ExecuteContractAuthorization{}
 )
 
+func NewAllowedContract(contractAddr sdk.AccAddress, allowedMessages []string) *AllowedContract {
+	return &AllowedContract{
+		ContractAddress: contractAddr.String(),
+		AllowedMessages: allowedMessages,
+	}
+}
+
 // NewExecuteContractAuthorization creates a new ExecuteContractAuthorization object.
-func NewExecuteContractAuthorization(targetContracts, AllowedFunctions []string) *ExecuteContractAuthorization {
-	return &ExecuteContractAuthorization{}
+func NewExecuteContractAuthorization(allowedContracts []*AllowedContract) *ExecuteContractAuthorization {
+	return &ExecuteContractAuthorization{
+		AllowedContracts: allowedContracts,
+	}
 }
 
 // MsgTypeURL implements Authorization.MsgTypeURL.
@@ -39,11 +50,81 @@ func (a ExecuteContractAuthorization) MsgTypeURL() string {
 
 // Accept implements Authorization.Accept.
 func (a ExecuteContractAuthorization) Accept(ctx sdk.Context, msg sdk.Msg) (authztypes.AcceptResponse, error) {
-	return authztypes.AcceptResponse{Accept: true}, nil
+	exec, ok := msg.(*MsgExecuteContract)
+	if !ok {
+		return authztypes.AcceptResponse{}, sdkerrors.ErrInvalidType.Wrap("type mismatch")
+	}
+
+	update := []*AllowedContract{}
+	for _, allowedContract := range a.AllowedContracts {
+		if allowedContract.ContractAddress == exec.Contract {
+			// if the allowed contract contains the contract address and there aren't allowed messages,
+			// then we accept the message.
+			if len(allowedContract.AllowedMessages) == 0 && !allowedContract.Once {
+				// if the permission is for multiple executions, we accept the message and keep
+				// it in the update array
+				update = append(update, allowedContract)
+				continue
+			} else if len(allowedContract.AllowedMessages) > 0 {
+				// otherwise we exclude it from the update array
+				continue
+			}
+
+			// NOTE: exec.Msg is base64 encoded, so we need to decode it first
+			// If there are allowedMessages then decode the call and check if the message is allowed
+			callBz := []byte{}
+			if _, err := base64.RawStdEncoding.Decode(exec.Msg.Bytes(), callBz); err != nil {
+				return authztypes.AcceptResponse{}, sdkerrors.Wrap(err, "failed to decode base64")
+			}
+
+			messageName := map[string]interface{}{}
+			if err := json.Unmarshal(callBz, &messageName); err != nil {
+				return authztypes.AcceptResponse{}, sdkerrors.Wrap(err, "failed to unmarshal json")
+			}
+
+			for _, allowedFunction := range allowedContract.AllowedMessages {
+				if len(messageName) != 1 {
+					return authztypes.AcceptResponse{}, sdkerrors.ErrInvalidRequest.Wrap("too many message calls in the same transaction")
+				}
+				for k := range messageName {
+					if allowedFunction == k {
+						if allowedContract.Once {
+							continue
+						} else {
+							update = append(update, allowedContract)
+							continue
+						}
+					}
+				}
+			}
+		} else {
+			// if the allowed contract doesn't contain the contract address, we add it to the update array
+			update = append(update, allowedContract)
+		}
+	}
+	if len(update) == 0 {
+		return authztypes.AcceptResponse{Accept: true, Delete: true}, nil
+	}
+	return authztypes.AcceptResponse{Accept: true, Updated: NewExecuteContractAuthorization(update)}, nil
 }
 
 // ValidateBasic implements Authorization.ValidateBasic.
 func (a ExecuteContractAuthorization) ValidateBasic() error {
+	for _, allowedContract := range a.AllowedContracts {
+		if err := allowedContract.ValidateBasic(); err != nil {
+			return sdkerrors.Wrap(err, "allowed contract")
+		}
+	}
+	return nil
+}
+
+func (a AllowedContract) ValidateBasic() error {
+	if len(a.ContractAddress) == 0 {
+		return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "contract address cannot be empty")
+	}
+	if _, err := sdk.AccAddressFromBech32(a.ContractAddress); err != nil {
+		return sdkerrors.Wrap(err, "contract address")
+	}
 	return nil
 }
 
diff --git a/x/wasm/types/types.pb.go b/x/wasm/types/types.pb.go
index eed6df1f1c..3d68f2ec16 100644
--- a/x/wasm/types/types.pb.go
+++ b/x/wasm/types/types.pb.go
@@ -98,9 +98,7 @@ func (ContractCodeHistoryOperationType) EnumDescriptor() ([]byte, []int) {
 // ExecuteContractAuthorization gives the grantee unrestricted permissions to execute
 // the provided method on behalf of the granter's account.
 type ExecuteContractAuthorization struct {
-	// Msg, identified by it's type URL, to grant unrestricted permissions to execute
-	TargetContracts  []string `protobuf:"bytes,1,rep,name=target_contracts,json=targetContracts,proto3" json:"target_contracts,omitempty"`
-	AllowedFunctions []string `protobuf:"bytes,2,rep,name=allowed_functions,json=allowedFunctions,proto3" json:"allowed_functions,omitempty"`
+	AllowedContracts []*AllowedContract `protobuf:"bytes,1,rep,name=allowed_contracts,json=allowedContracts,proto3" json:"allowed_contracts,omitempty"`
 }
 
 func (m *ExecuteContractAuthorization) Reset()         { *m = ExecuteContractAuthorization{} }
@@ -136,6 +134,48 @@ func (m *ExecuteContractAuthorization) XXX_DiscardUnknown() {
 
 var xxx_messageInfo_ExecuteContractAuthorization proto.InternalMessageInfo
 
+type AllowedContract struct {
+	// required
+	ContractAddress string `protobuf:"bytes,1,opt,name=contract_address,json=contractAddress,proto3" json:"contract_address,omitempty"`
+	// optional
+	AllowedMessages []string `protobuf:"bytes,2,rep,name=allowed_messages,json=allowedMessages,proto3" json:"allowed_messages,omitempty"`
+	// optional
+	Once bool `protobuf:"varint,3,opt,name=once,proto3" json:"once,omitempty"`
+}
+
+func (m *AllowedContract) Reset()         { *m = AllowedContract{} }
+func (m *AllowedContract) String() string { return proto.CompactTextString(m) }
+func (*AllowedContract) ProtoMessage()    {}
+func (*AllowedContract) Descriptor() ([]byte, []int) {
+	return fileDescriptor_e6155d98fa173e02, []int{1}
+}
+func (m *AllowedContract) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *AllowedContract) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_AllowedContract.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *AllowedContract) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_AllowedContract.Merge(m, src)
+}
+func (m *AllowedContract) XXX_Size() int {
+	return m.Size()
+}
+func (m *AllowedContract) XXX_DiscardUnknown() {
+	xxx_messageInfo_AllowedContract.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_AllowedContract proto.InternalMessageInfo
+
 // AccessTypeParam
 type AccessTypeParam struct {
 	Value AccessType `protobuf:"varint,1,opt,name=value,proto3,enum=cosmwasm.wasm.v1.AccessType" json:"value,omitempty" yaml:"value"`
@@ -145,7 +185,7 @@ func (m *AccessTypeParam) Reset()         { *m = AccessTypeParam{} }
 func (m *AccessTypeParam) String() string { return proto.CompactTextString(m) }
 func (*AccessTypeParam) ProtoMessage()    {}
 func (*AccessTypeParam) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{1}
+	return fileDescriptor_e6155d98fa173e02, []int{2}
 }
 func (m *AccessTypeParam) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -184,7 +224,7 @@ func (m *AccessConfig) Reset()         { *m = AccessConfig{} }
 func (m *AccessConfig) String() string { return proto.CompactTextString(m) }
 func (*AccessConfig) ProtoMessage()    {}
 func (*AccessConfig) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{2}
+	return fileDescriptor_e6155d98fa173e02, []int{3}
 }
 func (m *AccessConfig) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -223,7 +263,7 @@ type Params struct {
 func (m *Params) Reset()      { *m = Params{} }
 func (*Params) ProtoMessage() {}
 func (*Params) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{3}
+	return fileDescriptor_e6155d98fa173e02, []int{4}
 }
 func (m *Params) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -266,7 +306,7 @@ func (m *CodeInfo) Reset()         { *m = CodeInfo{} }
 func (m *CodeInfo) String() string { return proto.CompactTextString(m) }
 func (*CodeInfo) ProtoMessage()    {}
 func (*CodeInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{4}
+	return fileDescriptor_e6155d98fa173e02, []int{5}
 }
 func (m *CodeInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -319,7 +359,7 @@ func (m *ContractInfo) Reset()         { *m = ContractInfo{} }
 func (m *ContractInfo) String() string { return proto.CompactTextString(m) }
 func (*ContractInfo) ProtoMessage()    {}
 func (*ContractInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{5}
+	return fileDescriptor_e6155d98fa173e02, []int{6}
 }
 func (m *ContractInfo) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -362,7 +402,7 @@ func (m *ContractCodeHistoryEntry) Reset()         { *m = ContractCodeHistoryEnt
 func (m *ContractCodeHistoryEntry) String() string { return proto.CompactTextString(m) }
 func (*ContractCodeHistoryEntry) ProtoMessage()    {}
 func (*ContractCodeHistoryEntry) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{6}
+	return fileDescriptor_e6155d98fa173e02, []int{7}
 }
 func (m *ContractCodeHistoryEntry) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -405,7 +445,7 @@ func (m *AbsoluteTxPosition) Reset()         { *m = AbsoluteTxPosition{} }
 func (m *AbsoluteTxPosition) String() string { return proto.CompactTextString(m) }
 func (*AbsoluteTxPosition) ProtoMessage()    {}
 func (*AbsoluteTxPosition) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{7}
+	return fileDescriptor_e6155d98fa173e02, []int{8}
 }
 func (m *AbsoluteTxPosition) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -446,7 +486,7 @@ func (m *Model) Reset()         { *m = Model{} }
 func (m *Model) String() string { return proto.CompactTextString(m) }
 func (*Model) ProtoMessage()    {}
 func (*Model) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e6155d98fa173e02, []int{8}
+	return fileDescriptor_e6155d98fa173e02, []int{9}
 }
 func (m *Model) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -479,6 +519,7 @@ func init() {
 	proto.RegisterEnum("cosmwasm.wasm.v1.AccessType", AccessType_name, AccessType_value)
 	proto.RegisterEnum("cosmwasm.wasm.v1.ContractCodeHistoryOperationType", ContractCodeHistoryOperationType_name, ContractCodeHistoryOperationType_value)
 	proto.RegisterType((*ExecuteContractAuthorization)(nil), "cosmwasm.wasm.v1.ExecuteContractAuthorization")
+	proto.RegisterType((*AllowedContract)(nil), "cosmwasm.wasm.v1.AllowedContract")
 	proto.RegisterType((*AccessTypeParam)(nil), "cosmwasm.wasm.v1.AccessTypeParam")
 	proto.RegisterType((*AccessConfig)(nil), "cosmwasm.wasm.v1.AccessConfig")
 	proto.RegisterType((*Params)(nil), "cosmwasm.wasm.v1.Params")
@@ -492,85 +533,87 @@ func init() {
 func init() { proto.RegisterFile("cosmwasm/wasm/v1/types.proto", fileDescriptor_e6155d98fa173e02) }
 
 var fileDescriptor_e6155d98fa173e02 = []byte{
-	// 1243 bytes of a gzipped FileDescriptorProto
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+	0xda, 0xb9, 0x9e, 0xfc, 0x7e, 0x14, 0x1f, 0x8f, 0x8d, 0x69, 0x31, 0xd5, 0xde, 0xfd, 0x27, 0x00,
+	0x00, 0xff, 0xff, 0x8a, 0x3c, 0x4a, 0xb6, 0x5d, 0x0a, 0x00, 0x00,
 }
 
 func (this *ExecuteContractAuthorization) Equal(that interface{}) bool {
@@ -592,22 +635,49 @@ func (this *ExecuteContractAuthorization) Equal(that interface{}) bool {
 	} else if this == nil {
 		return false
 	}
-	if len(this.TargetContracts) != len(that1.TargetContracts) {
+	if len(this.AllowedContracts) != len(that1.AllowedContracts) {
 		return false
 	}
-	for i := range this.TargetContracts {
-		if this.TargetContracts[i] != that1.TargetContracts[i] {
+	for i := range this.AllowedContracts {
+		if !this.AllowedContracts[i].Equal(that1.AllowedContracts[i]) {
 			return false
 		}
 	}
-	if len(this.AllowedFunctions) != len(that1.AllowedFunctions) {
+	return true
+}
+func (this *AllowedContract) Equal(that interface{}) bool {
+	if that == nil {
+		return this == nil
+	}
+
+	that1, ok := that.(*AllowedContract)
+	if !ok {
+		that2, ok := that.(AllowedContract)
+		if ok {
+			that1 = &that2
+		} else {
+			return false
+		}
+	}
+	if that1 == nil {
+		return this == nil
+	} else if this == nil {
+		return false
+	}
+	if this.ContractAddress != that1.ContractAddress {
 		return false
 	}
-	for i := range this.AllowedFunctions {
-		if this.AllowedFunctions[i] != that1.AllowedFunctions[i] {
+	if len(this.AllowedMessages) != len(that1.AllowedMessages) {
+		return false
+	}
+	for i := range this.AllowedMessages {
+		if this.AllowedMessages[i] != that1.AllowedMessages[i] {
 			return false
 		}
 	}
+	if this.Once != that1.Once {
+		return false
+	}
 	return true
 }
 func (this *AccessTypeParam) Equal(that interface{}) bool {
@@ -870,24 +940,69 @@ func (m *ExecuteContractAuthorization) MarshalToSizedBuffer(dAtA []byte) (int, e
 	_ = i
 	var l int
 	_ = l
-	if len(m.AllowedFunctions) > 0 {
-		for iNdEx := len(m.AllowedFunctions) - 1; iNdEx >= 0; iNdEx-- {
-			i -= len(m.AllowedFunctions[iNdEx])
-			copy(dAtA[i:], m.AllowedFunctions[iNdEx])
-			i = encodeVarintTypes(dAtA, i, uint64(len(m.AllowedFunctions[iNdEx])))
+	if len(m.AllowedContracts) > 0 {
+		for iNdEx := len(m.AllowedContracts) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.AllowedContracts[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintTypes(dAtA, i, uint64(size))
+			}
 			i--
-			dAtA[i] = 0x12
+			dAtA[i] = 0xa
+		}
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *AllowedContract) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *AllowedContract) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *AllowedContract) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.Once {
+		i--
+		if m.Once {
+			dAtA[i] = 1
+		} else {
+			dAtA[i] = 0
 		}
+		i--
+		dAtA[i] = 0x18
 	}
-	if len(m.TargetContracts) > 0 {
-		for iNdEx := len(m.TargetContracts) - 1; iNdEx >= 0; iNdEx-- {
-			i -= len(m.TargetContracts[iNdEx])
-			copy(dAtA[i:], m.TargetContracts[iNdEx])
-			i = encodeVarintTypes(dAtA, i, uint64(len(m.TargetContracts[iNdEx])))
+	if len(m.AllowedMessages) > 0 {
+		for iNdEx := len(m.AllowedMessages) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.AllowedMessages[iNdEx])
+			copy(dAtA[i:], m.AllowedMessages[iNdEx])
+			i = encodeVarintTypes(dAtA, i, uint64(len(m.AllowedMessages[iNdEx])))
 			i--
-			dAtA[i] = 0xa
+			dAtA[i] = 0x12
 		}
 	}
+	if len(m.ContractAddress) > 0 {
+		i -= len(m.ContractAddress)
+		copy(dAtA[i:], m.ContractAddress)
+		i = encodeVarintTypes(dAtA, i, uint64(len(m.ContractAddress)))
+		i--
+		dAtA[i] = 0xa
+	}
 	return len(dAtA) - i, nil
 }
 
@@ -1263,18 +1378,34 @@ func (m *ExecuteContractAuthorization) Size() (n int) {
 	}
 	var l int
 	_ = l
-	if len(m.TargetContracts) > 0 {
-		for _, s := range m.TargetContracts {
-			l = len(s)
+	if len(m.AllowedContracts) > 0 {
+		for _, e := range m.AllowedContracts {
+			l = e.Size()
 			n += 1 + l + sovTypes(uint64(l))
 		}
 	}
-	if len(m.AllowedFunctions) > 0 {
-		for _, s := range m.AllowedFunctions {
+	return n
+}
+
+func (m *AllowedContract) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.ContractAddress)
+	if l > 0 {
+		n += 1 + l + sovTypes(uint64(l))
+	}
+	if len(m.AllowedMessages) > 0 {
+		for _, s := range m.AllowedMessages {
 			l = len(s)
 			n += 1 + l + sovTypes(uint64(l))
 		}
 	}
+	if m.Once {
+		n += 2
+	}
 	return n
 }
 
@@ -1470,7 +1601,91 @@ func (m *ExecuteContractAuthorization) Unmarshal(dAtA []byte) error {
 		switch fieldNum {
 		case 1:
 			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field TargetContracts", wireType)
+				return fmt.Errorf("proto: wrong wireType = %d for field AllowedContracts", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthTypes
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.AllowedContracts = append(m.AllowedContracts, &AllowedContract{})
+			if err := m.AllowedContracts[len(m.AllowedContracts)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipTypes(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthTypes
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *AllowedContract) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowTypes
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: AllowedContract: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: AllowedContract: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ContractAddress", wireType)
 			}
 			var stringLen uint64
 			for shift := uint(0); ; shift += 7 {
@@ -1498,11 +1713,11 @@ func (m *ExecuteContractAuthorization) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.TargetContracts = append(m.TargetContracts, string(dAtA[iNdEx:postIndex]))
+			m.ContractAddress = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
 		case 2:
 			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field AllowedFunctions", wireType)
+				return fmt.Errorf("proto: wrong wireType = %d for field AllowedMessages", wireType)
 			}
 			var stringLen uint64
 			for shift := uint(0); ; shift += 7 {
@@ -1530,8 +1745,28 @@ func (m *ExecuteContractAuthorization) Unmarshal(dAtA []byte) error {
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.AllowedFunctions = append(m.AllowedFunctions, string(dAtA[iNdEx:postIndex]))
+			m.AllowedMessages = append(m.AllowedMessages, string(dAtA[iNdEx:postIndex]))
 			iNdEx = postIndex
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Once", wireType)
+			}
+			var v int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowTypes
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				v |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			m.Once = bool(v != 0)
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTypes(dAtA[iNdEx:])