{
"manageEntity": {
"action": "Save",
"entityId": "2020559122",
"entityType": "Track",
"nonce": "1785732478131753567",
"signature": "0x56cf5a1e39d51528d29b4b28e660091b8ec131fe72c259a2a3d391ffd8a5b7c45b233d6148aa151a3382af695973a4152bed8e8f449c890be3aaefd7c33da5451c",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}