[
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  },
  {
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  },
  {
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  },
  {
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  },
  {
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  },
  {
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  },
  {
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  },
  {
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    "exported_at": "2026-09-26T09:00:00"
  },
  {
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  },
  {
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  },
  {
    "device_id": "MAC-0312",
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  },
  {
    "device_id": "MAC-0318",
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  },
  {
    "device_id": "MAC-0325",
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    "module_type": "sysext",
    "sysext_approved": true,
    "installed_at": "2026-01-20T10:00:00",
    "last_heartbeat_at": "2026-09-26T08:45:00",
    "exported_at": "2026-09-26T09:00:00"
  },
  {
    "device_id": "MAC-0331",
    "device_group": "콜센터",
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    "module_type": "kext",
    "sysext_approved": null,
    "installed_at": "2025-10-07T09:20:00",
    "last_heartbeat_at": "2026-09-25T12:00:00",
    "exported_at": "2026-09-26T09:00:00"
  },
  {
    "device_id": "MAC-0340",
    "device_group": "트레이딩룸",
    "macos_version": "26.0.1",
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    "module_type": "sysext",
    "sysext_approved": false,
    "installed_at": "2026-09-24T20:00:00",
    "last_heartbeat_at": "2026-09-26T08:57:00",
    "exported_at": "2026-09-26T09:00:00"
  }
]