{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3bae6eff1720b1ac2793d6396c6651f487987c2df89a428d34f807aa525545a5",
    "signature": "0xb894173737640337fa84817847de5c921d1fa8f36182a12b6683bbf862e5227b2cdd79489dce2e0f1d12c15a6207afebbfbc39b50e32db46b67b836787e303a71c",
    "signer": "0x14A55CAAD52a18f76025A94865ce06ED8A0Ea2cC",
    "userId": "653598798"
  }
}