[
    {
        "Id":1,
        "InvitePeopleMax":10,
        "CodeLetter":"abcdefghijk",
        "InviteRewardId[1]":9000,
        "InviteRewardId[2]":9001,
        "InviteRewardId[3]":9002,
        "UseCodeReward[1]":9003,
        "UseCodeReward[2]":null,
        "UseCodeReward[3]":null
    }
]