{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175319",
    "entityType": "User",
    "nonce": "0xe3731014f4b18f77640c7487d498fa134b6be25b098a6d7c43aff29b59f0dfb5",
    "signature": "0x20fab7f06e45775dad345cd9a512da2270cadf4727272522e0b005c2a62f2e6557c270fa01bd7617b79494643844dc8a990769b11356272376f6960539badf961b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}