家庭事件

回调的请求body， response_id请原样返回

加入家庭

{
    "childId":"孩子ID",
    "userId":"家长Id",
    "schoolId":"学校id",
    "tag":"joinFamily",
    "response_id":"123aasdfAADDDCMKDJ"
}

离开家庭

{
    "childId":"孩子ID",
    "userId":"家长Id",
    "tag":"outFamily",
    "response_id":"123aasdfAADDDCMKDJ"
}