test.js

const mempool = [
    {
        "address": "R9iy5zng7NKHm5gEabXqfYD9YtMdRfXRsE",
        "assetName": "XNA",
        "txid": "cce1ec50510c4bac28d656491c1b2a9fae4a623cef2b0c7277530cb769b10444",
        "index": 0,
        "satoshis": -274000000,
        "timestamp": 1684442124,
        "prevtxid": "5003c74b4c5d9c2420f95afc5f287905588d4da3e4c87fe97fefab27b447a962",
        "prevout": 2
    },
    {
        "address": "RBm5jQj6vXJxhASHoaJ7MqT9GKrsHJAaBB",
        "assetName": "XNA",
        "txid": "cce1ec50510c4bac28d656491c1b2a9fae4a623cef2b0c7277530cb769b10444",
        "index": 2,
        "satoshis": 272000000,
        "timestamp": 1684442124
    },
    {
        "address": "RBLPH6tr8Td4WuwmVXpgedVgTNVnQcCahN",
        "assetName": "BITCOIN_3.0",
        "txid": "cce1ec50510c4bac28d656491c1b2a9fae4a623cef2b0c7277530cb769b10444",
        "index": 1,
        "satoshis": -500000000,
        "timestamp": 1684442124,
        "prevtxid": "5003c74b4c5d9c2420f95afc5f287905588d4da3e4c87fe97fefab27b447a962",
        "prevout": 1
    },
    {
        "address": "RCztLJSfs5VZ715N38omHXagKHTjtQNZY2",
        "assetName": "BITCOIN_3.0",
        "txid": "cce1ec50510c4bac28d656491c1b2a9fae4a623cef2b0c7277530cb769b10444",
        "index": 1,
        "satoshis": 400000000,
        "timestamp": 1684442124
    }
]