{
"manageEntity": {
"action": "Save",
"entityId": "465128806",
"entityType": "Track",
"nonce": "1786828040073205928",
"signature": "0xd8dcb2eb5a89dab489a9d3136419f87dc4cc4664cca414649a779a19ee2f9b435d67ac92cb7f048aac342166b88c2f49c970e24a4cf318c63cbd94c76fb4042f1b",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}