{
  "manageEntity": {
    "action": "Save",
    "entityId": "92570",
    "entityType": "Track",
    "nonce": "0x37db1e78d7881a201aa0663eca676c4626e49ad45f2d44ef2c80e85b78ee9d10",
    "signature": "0xb0987143bc9808dcef195fcf234e8bd384f03b9573b012bd426c1e30cf0b99b31037afafb256664dbdb9d67e882ce3a6a0e25176d666315f7ca198ee562547be1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}