{
  "manageEntity": {
    "action": "Delete",
    "entityId": "349515",
    "entityType": "Track",
    "nonce": "0x880da8c156872a5b0c82c93edfff459c2d06600e65dbe57fbb0ef2bbcaf0a7fa",
    "signature": "0x729acbcce88407b14404a008e75d9805e517c69dc64f566d068842ca71fe90614bbe730ba334c685a9e11640493610602ebbdcf42c0faef2ae42518cba6b4e851c",
    "signer": "0x780028415E21688FAA8A7552D03fC4aFf55A839F",
    "userId": "10817"
  }
}