{
"manageEntity": {
"action": "Save",
"entityId": "1984897033",
"entityType": "Track",
"nonce": "1792530649602968808",
"signature": "0xf686576de47a48d95db257382110aa208b7f59c8367d1ae4bf75abcce596dd0b17f01cb32487661cc5e283497a906d00393916287607b9db271dc8c835ea719e1b",
"signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
"userId": "568518925"
}
}