{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3801a0bf51265b09f42bd0ace7dfcdb8998e3b41c1b445370f6c0d2983521ed1",
    "signature": "0x4be34afd01c085c2effb0a49144a44b6d60b72f4cc4f4c9e59f1235a312c198211a33545e630f544f1b4c58ab425d60a08b7fd172d121174b8966103aadfe7cc1b",
    "signer": "0x61759FD9d69b6C29FE84fc39eaB6C50Cf7dCd8FC",
    "userId": "366953361"
  }
}