{
  "type": "flex",
  "altText": "GenContentFlex!0",
  "contents": {
    "type": "bubble",

    "direction": "ltr",
    "header": {
      "type": "box",

      "layout": "vertical",

      "contents": [
        {
          "type": "text",

          "text": "Header",
          "align": "center",
          "contents": []
        }

      ]

    },
    "hero": {
      "type": "image",
      "url": "https://1417094351.rsc.cdn77.org/articles/1439/1438984/thumbnail/small.gif?3",
      "size": "full",
      "aspectRatio": "1.51:1",
      "aspectMode": "fit"
    },
    "body": {
      "type": "box",
      "layout": "vertical",
      "contents": [
        {
          "type": "text",
          "text": "Body",
          "align": "center",
          "contents": []
        }
      ]
    },
    "footer": {
      "type": "box",
      "layout": "horizontal",
      "contents": [

        {
          "type": "button",
          "action": {
            "type": "uri",
            "label": "Button",

            "uri": "https://linecorp.com"
          }

        }
      ]
    }
  }
}