{
"manageEntity": {
"action": "Save",
"entityId": "1764211468",
"entityType": "Track",
"nonce": "1794072993196869559",
"signature": "0xc3e3de541aabd755ebce797e8642697466cbae6409ed6a85b40b675b5ccac5dc073b88296897db573e3f8cadca0898335098def6591f3b008e4dbda26dca1dd81b",
"signer": "0xBe67278ee49E32775e76b8c786ad0Cd10446DB2E",
"userId": "489615953"
}
}