{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237750",
    "entityType": "User",
    "nonce": "0x377c37d48664db439b559e1e470f62b0add1987947ef57a13186fcf96af512b8",
    "signature": "0xd5e3b90b881f11fd66e599f10f872e311b7ab8f70bda70aaff54e87b74070ce42a57c35d099e3ddd54e7ad06698164e133a9129395a7dc2b0e0840ff57c2387f1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}