{
"manageEntity": {
"action": "Save",
"entityId": "275978032",
"entityType": "Track",
"nonce": "1792288862922326507",
"signature": "0x795b553d817678fdde0208a310046bb73f5a0aa2704daf2a7e680e35228685eb035860777681ed560a1511a0a10d38920ec77b83420846f67f7a1c25196bd1251b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}