{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712688986",
    "entityType": "User",
    "nonce": "0x0caaaf3291e49aca4d365fe332cf3777fed232404063aa4e6caefc1136b4e2f4",
    "signature": "0xcc7761fd5ac5c91ed92f0ba7883e3e874664ddfaf3c9d100ccc88719f004c2f47e364d5bbabf858d050dce74ecebaf73e34587874f3d9cdfb4a9be405d4b94bf1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}