{
  "manageEntity": {
    "action": "Delete",
    "entityId": "337639466",
    "entityType": "Track",
    "nonce": "0x88aa3b96abbb5ebdcefaf91f0b00d140b1370ce3143e9f393f1a514770d1e278",
    "signature": "0xc8f89d0925e0c9fe6a587df15e9ec14cf32db2ab8e1bc8122dd665ee22a5187d3d1157cdadc9d5976f889efba6b1539108768cc0de43163b1b1223f94463b9c11c",
    "signer": "0xdec63a335044C1b6E3F26B8aCF5334a973E79e00",
    "userId": "178077512"
  }
}