{
"manageEntity": {
"action": "Save",
"entityId": "1861784985",
"entityType": "Track",
"nonce": "0x43b379d474c0e25caaa57920d1277f10fd236215d62bcc9059ac6c436bac21ee",
"signature": "0xc298817f7e8166b2a1c568a0934e17522453d791a27acc388b9d74d6b64c1c4e3163394a7b4237e50c6eef37c630ae674b04c32c4e4edd1d11870dda4da052281b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}