Important: Server API is primarily intended for developers of server plugins and custom integrations. There are no official plugins for this API.
The passengers field contains a list of model parts.
Each entry is a string with entity data that can be used to build the visual part of the model on the server.
{
"passengers": [
"{id:\"minecraft:block_display\",block_state:{Name:\"minecraft:oak_log\",Properties:{axis:\"x\"}},transformation:[1f,0f,0f,0.5625f,0f,1f,0f,0f,0f,0f,1f,0.25f,0f,0f,0f,1f],Tags:[\"bde_0\"]}"
]
}