{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852947,-0.521997,0.000000,0.000000,0.269382,-0.440172,0.856553,0.000000,-0.446315,0.729282,0.518605,0.000000,-2849224.252513,4655653.582707,3288549.496432,1],    "boundingVolume": {    "region": [2.119941,0.545176,2.120033,0.545260,0.000000,78.392900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_4573.b3dm"}}}