{
"manageEntity": {
"action": "Save",
"entityId": "1181813232",
"entityType": "Track",
"nonce": "0x9aa01fcf610555e14ea56c6e871430d82c1471d0d77cd44286c4938bf0c8ef6a",
"signature": "0x0719110b9f112c63bd3cc58c78c547f399a7d015200e72fad6128a262596c5953bcf1a9338a3d01dbd3994c43edbd8321f326417d1ef8a19590d2e44766ab5db1b",
"signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
"userId": "667809204"
}
}