{
  "manageEntity": {
    "action": "Save",
    "entityId": "805481",
    "entityType": "Track",
    "nonce": "0x0bbab5c8fdf2ba2555e7721bbde59e35890a06ead7d89fb75b0ba2b8c3e335a1",
    "signature": "0xf22764b8e31b030fe085616fb43a03f76e5bc52994a48f95a5082c7b16ad4f90493361d9d9843d1fb7ccdca131029ce1f0101c808e157df11fa782ea165b88191c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}