{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x4e48d0aa52dd7f01abfa3b64702ae64d9398f5a6cb742ebe9492b822b387631c",
    "signature": "0x57bdba3edf32d5cc27ec9062f55155a0ad3384b4de5caf94000a90541fb826f97b1de6ed9c8c865b6203040f10215858620e8e7b30a801d95deda2f3f84d716e1b",
    "signer": "0x79d45a77BC3bf63157423b7Eef0ffD3a78067C4C",
    "userId": "53713679"
  }
}