In cesium for unity, how to add modelMatrix?

In Cesiumjs, I can in the code new Cesium3DTileset(), can set the url and modelMatrix, my colleague converted the prefab tileset.json url and modelMatrix, Not sure how to add modelMatrix?
In Cesiumjs, * Similar model matrices can be added

modelMatrix: Cesium.Matrix4.fromArray([
10.307518184037022, -1.840331301212637, 2.2041437311398484, 0,
1.6249475137735327, 10.510252086834296, 1.1764976194946968, 0,
-2.3674066957807045, -0.7986124047198713, 10.404210866942293, 0,
22645464.039225746, -42494999.12734722, -38710026.09518833, 1
]

I would assume you can change the Transform on the Cesium3DTileset’s game object to achieve the same thing.