{
  "kind": "illustrative_model_not_live_service_data",
  "review_date": "2026-11-05",
  "source": "https://ym-07.com/bbs/faq.php?fm_id=3",
  "grouping_note": "Grouping is fixed in this example; the live server grouping key is unknown.",
  "events": [
    {
      "id": "c1",
      "group": "comments",
      "category": "activity",
      "unread": true
    },
    {
      "id": "c2",
      "group": "comments",
      "category": "activity",
      "unread": true
    },
    {
      "id": "c3",
      "group": "comments",
      "category": "activity",
      "unread": true
    },
    {
      "id": "f1",
      "group": "follow",
      "category": "activity",
      "unread": true
    },
    {
      "id": "s1",
      "group": "system",
      "category": "news",
      "unread": true
    }
  ],
  "results": [
    {
      "step": "initial",
      "read_ids": [],
      "unread_events": 5,
      "groups_with_unread": 3
    },
    {
      "step": "comment_group_read",
      "read_ids": [
        "c1",
        "c2",
        "c3"
      ],
      "unread_events": 2,
      "groups_with_unread": 2
    },
    {
      "step": "activity_read",
      "read_ids": [
        "c1",
        "c2",
        "c3",
        "f1"
      ],
      "unread_events": 1,
      "groups_with_unread": 1
    },
    {
      "step": "all_read",
      "read_ids": [
        "c1",
        "c2",
        "c3",
        "f1",
        "s1"
      ],
      "unread_events": 0,
      "groups_with_unread": 0
    }
  ]
}