{
"manageEntity": {
"action": "Save",
"entityId": "610982260",
"entityType": "Track",
"nonce": "1793797029840531551",
"signature": "0xf929899031117c5c2965cb6b0e12cfbba4c642aa157b5159853febe6fa07dd356d7ee2e903651606131ae62652a6ca7862b755b28cc8b7d1d32702e761e40a531c",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}