{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51783",
    "entityType": "User",
    "nonce": "0x890b239c70e9de0cc7a02776aec9426ca1a12d39dcbe8c6e5b917ce32a8c1b2b",
    "signature": "0x119d37759ecb82a8c1bab62f9f0c30eeb52312df09fe699037b1eac726c9f9cc4086eaf2e4effc64c584f7d063f24ae86fe6831eaa3c3b015007db3fbffca0e81b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}