{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1422839261",
    "entityType": "Track",
    "nonce": "0x757891ca062b717af4e645cd1be684658b36fb9b26c8d4817bed9a2457d944c1",
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    "signer": "0x9152687Dc451F79C5722e6869B7266819895b279",
    "userId": "500693164"
  }
}