{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x8d4534f75f8becbb05840b1c37c6d0695d6e5f01cb5fd9edc5cbfc6bba08d431",
    "signature": "0x408adcfec395617d45a7ff675e5ee1d615d78456e9a71d533fc6a6718fdebf9b1f288db0b4a571059740c0f812cd46c361366000a6c8dce62f4d0e21e8300d821b",
    "signer": "0x5B4a8594975f00b3278cA5447Ea60256718E7BB3",
    "userId": "302311"
  }
}