[
    {
        "uid": "hh1RScdeZlcLtQoo",
        "agent": "abc123",
        "rental": 9000,
        "sale": null,
        "address": "荔枝角道1號",
        "district": "Sham Shui Po",
        "hidden": true,
        "pin": true,
        "comment": "交通方便",
        "size": 390
    },
    {
        "uid": "sjG0x0Vzr6QLVE5i",
        "agent": "abc123",
        "rental": "",
        "sale": 400,
        "address": "荔枝角道2號",
        "district": "Wong Tai Sin",
        "hidden": false,
        "pin": false,
        "comment": "高層",
        "size": 391
    },
    {
        "uid": "6YfdJK8JZYyyccCd",
        "agent": "agent2",
        "rental": "",
        "sale": 400,
        "address": "馬仔坑道1號",
        "district": "Wong Tai Sin",
        "hidden": false,
        "pin": false,
        "comment": "高層",
        "size": 391
    },
    {
        "uid": "ctsicFxEFv1ikmNr",
        "agent": "agent2",
        "rental": "",
        "sale": 400,
        "address": "馬仔坑道2號",
        "district": "Wong Tai Sin",
        "hidden": false,
        "pin": false,
        "comment": "空氣清新",
        "size": 391
    }
]