{
    "columns": [
      { "label": "Text Column", "fromKey": "textData", "type": "TEXT" },
      { "label": "Date Column", "fromKey": "dateData", "type": "DATE" },
      { "label": "Icon Column", "fromKey": "iconData", "type": "ICON" }
    ],

    "rows": [{
      "textData": "Some Long Text Data",
      "dateData": 1557834321063,
      "iconData": { "icon": "3dots" }
    }]

  }