{
  "manageEntity": {
    "action": "Delete",
    "entityId": "623911",
    "entityType": "Track",
    "nonce": "0x59f29db3011d589e59de87b93fbcd7b223f4d48118d880475364d96461fb9df1",
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    "signer": "0x6e9C5B9b53E6B0262A1F0e7D522171B38207717B",
    "userId": "152611"
  }
}