{
  "manageEntity": {
    "action": "Save",
    "entityId": "1106236",
    "entityType": "Track",
    "nonce": "0x94d23d06a766e5b7a15d75900fb7e50f15731ba4c558ebc4b4340affffcb89e3",
    "signature": "0x98fb0139df59479ae14b5329aa095027ada9be6da155e767f1fdf0d40fd8df8937b43c890db50d8f7fa51b0f423b97f01f72fd068b03d3cc5638729db968bef61b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}