{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xdd87b0901b270d7ba42b43dc8edc128277465e9679e69b9ae74ed7dee5e2269d",
    "signature": "0xd69fc396819574a1ee854cb6cb42188036cb912c7e23274df69d103bc8f2fce352baa051c49057ab66b45f4ad0532516ed2604b11c2898363e09b648d0d889151c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}