Laravel 开发 API 如何处理请求中有嵌套的 JSON 数据

目前有一个项目需要开发后台API，后台使用Laravel 5和Dingo api开发Restful风格的api，前端是用AngularJS开发，现在遇到的问题是前端请求api提供的是有嵌套的Json数据，Laravel要怎么处理有嵌套的Json数据，然后保存到Model对象里？ 前端提供的Json数据的一个例子：

     {
      "question" : [
      {
        "type": "SINGLE_CHOICE_RADIO_BUTTONS",
        "question_text": "1,请在此输入问题标题",
        "imageflag": false,
        "imageurl": "",
        "randomize_options": false,
        "required": false,
        "tip": "",
        "hastip": false,
        "visible": true,
        "direction": "h",
        "data_set_id": "",
        "questionOption": [
        {
            "id": "",
            "question_id": "",
            "option_value": "",
            "link_url": "",
            "allow_blank": true,
            "is_default": false,
            "sort_order": 0,
            "option_order": 0,
            "imageflag": false,
            "imageurl": "",
            "tip": "",
            "option_text": "选项1",
            "allow_other_text_box": false
        }
        {
            "id": "",
            "question_id": "",
            "option_value": "",
            "link_url": "",
            "allow_blank": true,
            "is_default": false,
            "sort_order": 0,
            "option_order": 0,
            "imageflag": false,
            "imageurl": "",
            "tip": "",
            "option_text": "选项2",
            "allow_other_text_box": false
        }
        ]}
        }
        {
        "id": "",
        "allow_other_text_box": false,
        "survey_id": "1",
        "question_order": 1,
        "sort_order": 1,
        "type": "SINGLE_CHOICE_RADIO_BUTTONS",
        "question_text": "2,请在此输入问题标题",
        "imageflag": false,
        "imageurl": "",
        "randomize_options": false,
        "required": false,
        "tip": "",
        "hastip": false,
        "visible": true,
        "direction": "h",
        "data_set_id": "",
        "questionOption": 
        {
            "id": "",
            "question_id": "",
            "option_value": "",
            "link_url": "",
            "allow_blank": true,
            "is_default": false,
            "sort_order": 0,
            "option_order": 0,
            "imageflag": false,
            "imageurl": "",
            "tip": "",
            "option_text": "选项1",
            "allow_other_text_box": false
        }
        }
    }