{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12462",
    "entityType": "User",
    "nonce": "0x28b2594874e38dfd8521c99a903ccd391c4f571a911f6b200c612ab2881a43b8",
    "signature": "0xa889585b0414960e53a82aa9740bc47e688458e3fe181b901df63a7a0050dd1e7a382688b6e4e97499ee7c5f8f3b47c0233dad99e025c8a914acf903892a8c041b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}