Metadata for checkbox based filter UI

{
  "type": "checkbox",
  "filterBlocks": [
    {
      "filterTypes": [
        {
          "filterType": "BldgLevel",
          "filterValues": [
            "3"
          ]
        },
        {
          "filterType": "CreatedPhase",
          "filterValues": [
            "1"
          ]
        }
      ]
    }
  ]
}