{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7cce127428d3ca61c2b84d58dc85524a817ee84658a5c1902ca006a3c63a15ea",
    "signature": "0xb07ab1a490289f0430edf4d32adbff587ef67e530c6f5c5fce35f42b75aaade863088b2ba29f1d6a5fe7eaf9632c5963849333aa1603b33a899a16077400989a1c",
    "signer": "0x83e18d8f2181D38D405A623A4967ef20C4A7f056",
    "userId": "122609938"
  }
}