{ "layers": [ { "layerId": 0, "layerName": "Contour_50m_Current", "layerType": "Feature Layer", "minScale": 150000, "maxScale": 50000, "legend": [ { "label": "", "url": "d4a95883aa40fed132b5864144abfa1a", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOUlEQVQ4jWNhoDJgGTVw1MDBYmDEUq2G/0z/7SkxiPEf48EV0dcaaOPCFdHXGqhqIDXBqIGjBpIBACz/Cqp1w+IGAAAAAElFTkSuQmCC", "contentType": "image/png", "height": 20, "width": 20 } ] }, { "layerId": 1, "layerName": "Contour_10m", "layerType": "Feature Layer", "minScale": 50001, "maxScale": 0, "legend": [ { "label": "", "url": "cf5bae888b2b2f3b47924d1e64de339e", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPUlEQVQ4jWNhoDJgGTVw1MDBYuCyfAYbZmYGa0oM+vuX4WjURIYjtHFh1ESGIwwMDEeoZiA1waiBowaSAQB9vAjECFZP1wAAAABJRU5ErkJggg==", "contentType": "image/png", "height": 20, "width": 20 } ] } ] }