{
  "manageEntity": {
    "action": "Save",
    "entityId": "232272",
    "entityType": "Track",
    "nonce": "0x2ba759415eb107570d542c927d0087b6d575e8d297bac6eea24950e8e744800c",
    "signature": "0x85de38e4dd0e9b8c8052fedc1aaef0b7dfbb2a6b1447cab1ebe0ae907ccd93975b6c3f2a6271046691147d7ff419a88ebdda9069ce04f583c57efcdec0786d571b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}