array(3) {
  ["width_config"] => string(0) ""
  ["header-top"] => array(2) {
    [0] => array(2) {
      ["child_blocks"] => array(1) {
        [0] => string(84) "{"type":"custom","id":"6","title":"Main Navigation","group_id":"1","store_view":"0"}"
      }
      ["custom_class"] => string(29) "border-dash col-lg-6 nav_site"
    }
    [1] => array(2) {
      ["child_blocks"] => array(1) {
        [0] => string(80) "{"type":"custom","id":"4","title":"Search Mini","group_id":"1","store_view":"0"}"
      }
      ["custom_class"] => string(42) "border-dash col-lg-6  col-md-6 ui-sortable"
    }
  }
  ["header-mid"] => array(1) {
    [0] => array(2) {
      ["child_blocks"] => array(1) {
        [0] => string(78) "{"type":"custom","id":"3","title":"Site Logo","group_id":"1","store_view":"0"}"
      }
      ["custom_class"] => string(52) "border-dash col-lg-3  col-md-3 col-xs-12 ui-sortable"
    }
  }
}