{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x561446d133d0a27e5a70657364f870176127f1c16393da92af0b922d86d42eb0",
    "signature": "0x9b494324fc23516d1ff557b44cb7a0d6aaeb59a44041678452bf4bd0176a97411ae2db9fdae90f2591b72831a9749b5d896d1f5f500cd6e71c3fba9c5160a5961c",
    "signer": "0xDcA990D6fdCA454B4d98656c1fc44a2174fe1A13",
    "userId": "441858988"
  }
}