{
  "manageEntity": {
    "action": "Save",
    "entityId": "110027263",
    "entityType": "Track",
    "nonce": "0x2bdfd66a36eff2c865812534dbfa86353a5dfa47ef93e6ceedb0562a5212f09c",
    "signature": "0xffbc325f67e9c79da08612aab35d2d9b88c1cd72ac2cadd9168bea26a2b2cd45168e05591404f1216fb366b4be90b8ed1723213c88d443e9b0d3e37155c78a561c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}