{
    "messages": [
        {
            "timestamp": "2024-01-01 12:00:00",
            "sender": "system",
            "content": "欢迎来到智慧树！这里是一个匿名的心愿许愿池，分享你的心声吧~",
            "id": "default_message_001"
        },
        {
            "timestamp": "2024-01-01 12:30:00",
            "sender": "system",
            "content": "记得定期给智慧树浇水施肥哦，它会越长越高~",
            "id": "default_message_002"
        },
        {
            "timestamp": "2024-01-01 13:00:00",
            "sender": "system",
            "content": "智慧树需要你的呵护，除草杀虫让它更健康！",
            "id": "default_message_003"
        },
        {
            "timestamp": "2025-07-09 10:52:31",
            "sender": "2143323382",
            "content": "陌生人你好呀",
            "id": "e62d7c3e-4965-4110-b7f2-a5f5a3806d86"
        },
        {
            "timestamp": "2025-07-09 15:46:18",
            "sender": "2143323382",
            "content": "你好",
            "id": "13c3e296-b23b-4ad4-a68e-93d28769614a"
        },
        {
            "timestamp": "2025-07-09 16:53:16",
            "sender": "2143323382",
            "content": "我喜欢柚小青",
            "id": "5bf10c6b-fc73-4a5f-a246-99a474148175"
        },
        {
            "timestamp": "2025-07-09 16:54:31",
            "sender": "2143323382",
            "content": "柚小青最可爱",
            "id": "f1af2d77-c860-4f1a-8d2b-f5dd0dc5a672"
        }
    ],
    "total_messages": 7,
    "last_update": "2025-07-09 16:54:31"
}