{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "762088887",
    "entityType": "User",
    "nonce": "0x8943a5e81a2904825bc452237e71f50a0bb8c481446e1fd5572457885a63e3ff",
    "signature": "0x4dcbcf7120c957c2dbc5824ad92449dd83e806e7c3ae7b3b2dea2dd8a89b95a02e1bc01eba6a86f49a2c199d522fe7e1485c952e2bc2ef24e42728e88282687e1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}