{
  "manageEntity": {
    "action": "Save",
    "entityId": "11954104",
    "entityType": "Track",
    "nonce": "0x32f23af35ddbdd824160c0adac55d3b113e20360f9d41e1cefc3e5d3e6e24882",
    "signature": "0x3bbfff504dcbbab85add7a1d1a2e2a55200e7b638fc97624c1830765e76c199e3d7fad8127459022e222168bfe8a269f8a78d8b8e1c09ee4281c2fdc514490d51c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}