{
"manageEntity": {
"action": "Save",
"entityId": "923299403",
"entityType": "Track",
"nonce": "1792322951727582985",
"signature": "0x50bad24fbb345f35dccbedb69da521321c813b7c1b92cdcef1011f4e4036e93c4a6f24c1c8c3215d6f67822f0927bf242060055bc73f61209cb11600e1fa04b51c",
"signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
"userId": "329513359"
}
}