{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "1721",
    "entityType": "User",
    "nonce": "0x7bea454497d8ccd9a22dd29671d607fb107a9210ef083b117a59360803063abc",
    "signature": "0xa84f31b6c43db48a32546f0f7c36dde57c41fcb5b3aa25a8510ec5452d5b0c1943e9fa0e4feaec5fed7340a87484fe95f4f1074e6f12038ed3a8a9aa3bd8aec71c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}