{
"manageEntity": {
"action": "Delete",
"entityId": "479123764",
"entityType": "Track",
"nonce": "0x40f1ed202edf857c3beb059b5837c7e8567371aac0741998b4b7c45614644b8d",
"signature": "0x72f0b85d60c05888f98af54f05e1703939628886f8eeef940fec8f6c9aa78fee5b8ec588b25cd83966ce73d794f44bc5e6191d3d5782eacf5acd405d1eaccc4f1c",
"signer": "0xbA83b3D0645C0C99c76cB296B0BA81bD641DB81c",
"userId": "951995708"
}
}