{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949109,-0.314948,0.000000,0.000000,0.116071,-0.349784,0.929612,0.000000,-0.292511,0.881494,0.370683,0.000000,-1866531.503085,5624876.707186,2349521.240683,1],    "boundingVolume": {    "region": [1.891144,0.379687,1.891252,0.379802,0.000000,60.795093]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75858.b3dm"}}}