{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x20c7f2348332700559d5f2c19bc949a803cb26214dd7586e16c0cdbe702ff14a",
    "signature": "0x270813e35b230c5aa11f81f85ed1e854c1681994f06ce8b6470e94167a4c716a6550232309fb056d83a62ca6fd43628c7c2b9f964d50a1cfcea50f13236b050d1b",
    "signer": "0x7236f33AFc69e112EEadb51267423A33BaC3CbEC",
    "userId": "583435112"
  }
}