[{"portal_type": "DoormatColumn", "id": "coluna-1", "title": "Primeira coluna"}, {"portal_type": "DoormatColumn", "id": "coluna-2", "title": "Segunda coluna"}, {"portal_type": "DoormatColumn", "id": "coluna-3", "title": "Terceira coluna"}, {"portal_type": "DoormatColumn", "id": "quarta_coluna", "title": "Quarta coluna"}]