{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950385,-0.311076,0.000000,0.000000,0.114591,-0.350093,0.929680,0.000000,-0.288936,0.882744,0.370512,0.000000,-1843720.381649,5632850.798957,2348435.498596,1],    "boundingVolume": {    "region": [1.887047,0.379521,1.887196,0.379599,0.000000,9.331157]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/22/21_4786.b3dm"}}}