{
  "manageEntity": {
    "action": "Download",
    "entityId": "1435647605",
    "entityType": "Track",
    "nonce": "0x6958f5d95db89729047327c28ce4de610133378567281a84fd198e1bde99d6f1",
    "signature": "0x5e8b84d817ed4cc2bca28cfa7c8d21792de3dea5b2e81737391d98ba1c36cf933f1bc945d0d975fc97575d50cdfa5808239a5168ea551f21e7c8963ad66bd5591b",
    "signer": "0xEcf3E3b1Ba039b5dBD99Fc7269b85456198b3B7B",
    "userId": "403023766"
  }
}