{
    "1052101141": {
        "chat_id": "1052101141",
        "joined_at": "2026-03-22 12:08:02",
        "last_sent_hash": "081df862b45a0c43aee9d58af191ad3a",
        "last_sent_at": "2026-06-12 01:35:36"
    },
    "672889313": {
        "chat_id": "672889313",
        "joined_at": "2026-03-22 19:26:02",
        "last_sent_hash": "081df862b45a0c43aee9d58af191ad3a",
        "last_sent_at": "2026-06-12 01:35:36"
    }
}