{ "layers": [ { "layerId": 0, "layerName": "Vent Field", "layerType": "Feature Layer", "minScale": 0, "maxScale": 0, "legend": [ { "label": "", "url": "966c6ec8202d63c529c4090b5442a7a9", "imageData": "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", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }