{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385467596",
    "entityType": "User",
    "nonce": "0x8b174c0ce19f22969e84ee73293259807febbafa2f2c720ca414c008a9f47e77",
    "signature": "0xad41be3a59a799ce20d3b51eb39d6c6f6b216a07d28f0044170f55888dfc01c47413be7dcdb8779a3d8ab44f981134d5263dbc31b5c41ebe507802c49be98baf1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}