{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "255240433",
    "entityType": "User",
    "nonce": "0x997001c807d265939aa46913752cd047a08e178cef27d052149943af91898617",
    "signature": "0xa60bee081ef7815a98a4ceca6c80aa8b1ee4af405f0ce404ca610036cf04460447119462b6ecd18988b5a9bb8a035e3a3aaac805a7d2bb67f3ad6ac9827dfde81c",
    "signer": "0xF6A602938bf3C2035f253F89b50e93110F9EF4d2",
    "userId": "615050311"
  }
}