{
  "manageEntity": {
    "action": "Delete",
    "entityId": "604697",
    "entityType": "Track",
    "nonce": "0x072c5fd2cd1ae4da6a3da257e6da02a449ad3d5868584b284c7872e3a0124ef3",
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    "signer": "0x6e9C5B9b53E6B0262A1F0e7D522171B38207717B",
    "userId": "152611"
  }
}