{
  "manageEntity": {
    "action": "Delete",
    "entityId": "666145",
    "entityType": "Track",
    "nonce": "0x483153258f1eb9aecffb90ae2ae51f11897692bd9c26318a7c38c7fd73637950",
    "signature": "0x94f2765a612a1a95aab6d595f6c2ebab63ef71faa05c4c4f730ef65e50022f465a99837af13a6bf5f1130c8ac4a089e83b4fbd62cb42096fbac9f6dea4b557421b",
    "signer": "0x25Dfb5B0D7CDE92b65C3EEB690F0d4afdd575ae8",
    "userId": "253005"
  }
}