{
"manageEntity": {
"action": "Save",
"entityId": "1489323542",
"entityType": "Track",
"nonce": "0xa320667f9f84f9ff84e9eb3cea115224291d419612162b4de27b4f4139c199b5",
"signature": "0x8a2655f8977ab0ca1dc30e5d23395a0c1c9bcd9a50ef25404d66c85729d8daf16ebc6e846f227d7ee60f6d83b0fbb47de292d2e795287a2b808aa810ab87ce321b",
"signer": "0xADBEc7CBdC007B087ebc7ae272f8a3cf42Ea0184",
"userId": "466377094"
}
}