{
"manageEntity": {
"action": "Save",
"entityId": "470460323",
"entityType": "Track",
"nonce": "0x6ae2f867e43d1db46bbaf70c10f31e235e4fb16c879f7da9dcd88829a3b1cecf",
"signature": "0x4e65c0abb1b402950cd259b2194ff748a8a82fd842468a5bfac4eee745dbf05836e0cce199699bbc076f6376c5d5247ffc0c464d82bfd8fc241820db80eb6ace1b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}