{
"manageEntity": {
"action": "Save",
"entityId": "1044930839",
"entityType": "Track",
"nonce": "1792915880825352455",
"signature": "0x573a32f584be2a1854ae1cbba09b17d122a3e23bed9e88d1e30f60827ac932246d20de9b2025888e0c31cce5f3a80c63ae6e17df0eab77ad0c8820fb2a9e2f5d1c",
"signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
"userId": "568518925"
}
}