{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4f40ce2272ae17390806a22353ed9b888260078470f3ad355da5abd7a1ad86c1",
    "signature": "0xceb2209118529665149a7a346de8722e5f54770e5691cda8b1fbaedb33470e67760e422fcf0d37c2fd3eb4e12766f4fc4b2851ff500343770fee4932a3920e5b1c",
    "signer": "0xdc9388FeC2c8861A781061433d29372Ad444398E",
    "userId": "936963449"
  }
}