{
  "manageEntity": {
    "action": "Delete",
    "entityId": "616631284",
    "entityType": "Track",
    "nonce": "0xe600b6faa9d6343bd4b9870e174c35e73ea5b575b90995ea7657534f9aa24b97",
    "signature": "0xd5ed787b57561c2c92e0921723cf7eb33ea079fec9c3f2b75f35ce633f28e944455621d4911e8b5732cd4fc9e237ebbfafc59a2612ca41d438842de5ead0577c1b",
    "signer": "0xB1fdb4211728Aa91cA335811E0eAaD06b27686e4",
    "userId": "135129254"
  }
}