{
  "manageEntity": {
    "action": "Save",
    "entityId": "333062",
    "entityType": "Track",
    "nonce": "0xaff2b0104ffc61dff2078e33302d79fdfd8f6938e6efc2495e02c7046c968901",
    "signature": "0x4dd99eab3a1a21f1e276d0838c711bf2eb36a1df523a7da7ae5d2504ec636bf7280c77e9279cd8e9436b8548605f2c205eb526f4532976d923e883a3aa0e273d1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}