{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1411405",
    "entityType": "User",
    "nonce": "0x53bf4e0435c144fbd93076ab286f2623492aab0b01b643a63de9ccc71a71c83e",
    "signature": "0x30b813cbbf7f0c16bf02d27319764ebf3746b4f295d99504301b61308c2651b813e61b451c79ea8fbe32bddbea12d99ef1b13ee3a2ab097d9383bcd8ba9939fd1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}