{ "layers": [ { "layerId": 0, "layerName": "OGL_Signals", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "3397a89329d3412edc3199509b9bb1a4", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAa0lEQVQ4jWNhoDJgGTVwCIbh/////6OLMTIyMpJl4H+oYb7PEfo3S/4Hi+MylIUUw2B8fIay4HMhumHohpLkQnIBC10N3Cz5H6u3cXkXr4GgAAcFPLqhMMNIjmV0Q6mSDglpHoaxTA6guoEAhLczIBYYFQwAAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] }, { "layerId": 1, "layerName": "OGL_Routes", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "80dca787727dc26e96c7523ed8d338ef", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAO0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa6POM4T81DNsixcBIGxdukWJgpKqB1AQsVDWNYdRAaoDBHykAffYEIHkbf74AAAAASUVORK5CYII=", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }