{
  "manageEntity": {
    "action": "Save",
    "entityId": "797099414",
    "entityType": "Track",
    "nonce": "0x0b3d20058acf288b62c22179fa48e93f2a4c83e3662caa65aaf08d3c71fd5f77",
    "signature": "0x2c1785b86aaac402376eb9d528222f5da37e3d0c2aa2f43822fb6cfd7db1d2af72620fbbceef0261caf0028572c80790f1fef876141d47e0cb72cc07546334831b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}