{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x989fd657bbeff18347d5e26b977fa2a643c934654c5accc87fc5a47af5031af2",
    "signature": "0x08db449526aa8d26ea64c7839180b33778c7b8da33966d0028df481937ffa6b8686e6634c994a08e4cb8571ef15d40760b7d5b85010a9f0229a5d6f34454f75e1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}