{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb0ab985f0ef366652a4431a743e55818f12e8adbe48470cea59eac41d0d7d8b3",
    "signature": "0xe218e30554d62de3720dea399562e34c5dc0e6f96a3caad27b7d8690b35962570d38a684bf595e002e0e7f6a752bbd94331b3bd224d432fc8aaf33cba133ac831b",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}