{
"manageEntity": {
"action": "Save",
"entityId": "1764211468",
"entityType": "Track",
"nonce": "1794072973274123173",
"signature": "0x643080dc3ff84641ebe2f024d2499c27b27f7e35076137169b9247584349bfa6521fa1982c4e84ef2c4b5220d51f2f75acd74155a23579947db47c145df7ddde1c",
"signer": "0x55BA01017F8dBD9f72d167B93bA99061A881835c",
"userId": "379011990"
}
}