[
    {
        "Id": 1,
        "GachaId": 1,
        "CoreRewardGroupId": 1,
        "RewardGroup": [
            1,
            2
        ],
        "Weight": [
            1500,
            8500
        ]
    },
    {
        "Id": 2,
        "GachaId": 1,
        "CoreRewardGroupId": 3,
        "RewardGroup": [
            3,
            4
        ],
        "Weight": [
            1500,
            8500
        ]
    }
]