{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951906,-0.306389,0.000000,0.000000,0.114915,-0.357025,0.926999,0.000000,-0.283753,0.881578,0.377233,0.000000,-1810677.807931,5625505.755169,2391073.232698,1],    "boundingVolume": {    "region": [1.882112,0.386755,1.882276,0.386858,0.000000,6.057498]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/1/15_53321.b3dm"}}}