{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281682",
    "entityType": "User",
    "nonce": "0x1a2b7154aa6c29f6892e51ed195f7b1b44f9b7db816a6e6276e9f1bb60c8e4ad",
    "signature": "0x2d7e61074e17787e5717f9898b5b8d61b6431388eade895f0c8abfaadd7a2524752a0170cde31a589a9814e4f6333ea0053cf83e572e139c54f97dc595c9aa881c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}