{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0049bd8ccc80c7c08800823d39d951723810b543608544647413552e9fc40de2",
    "signature": "0x7641d9b544579eae004e342dd02320d71921aba450037c072b21e5be3017b82161df8e6ee90b66b32b14b86e871617bb3ddc525f35aaaa7e3a9649b1926362001c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}