{
  "manageEntity": {
    "action": "Save",
    "entityId": "1079403700",
    "entityType": "Track",
    "nonce": "0xe2992c6b2ab117ea7c93ada139e31ad47363feac0afc58f73b4f312e6f3fa5be",
    "signature": "0xedee0df07d09129c1097db0ee1eb98d8ba3f98fbf974399f0a788cc420b5632d059032700b0ae94f77ed65ef6adbfef1802739621eea13d9996ea04d14bb7b951b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}