{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc9e6e0d29e92be7e447e1874d255706e7b3f8b393076961e60b75bd302e95dba",
    "signature": "0x017b8b1a4520761e225680c9e6bb680131766e8bd6360118666ce33a4d4e14ef7bd58892d4c30350933e2bb3168bc8bb5ac9a6a635e2987bd602989d3bb36b9b1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}