{
  "manageEntity": {
    "action": "Save",
    "entityId": "2296",
    "entityType": "Track",
    "nonce": "0x67ec13d20495b5a7a58012d80a048e333fa652fbbbe13d2642956bc5f0a6db00",
    "signature": "0x1131707326552df93f501ef5e66c97eaa8f465d91938209dfd8d7e8bcf6bba0d52219a074bc51eaef032a7e3449a7078241ebf7aa8bcb60b9d27c37f9eea8b9e1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}