curl --request POST \
  --url https://{cluster}.cognitedata.com/api/v1/projects/{project}/3d/contextualization/pointcloud \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "items": [
    {
      "assetInstanceId": {
        "space": "<string>",
        "externalId": "<string>"
      },
      "volumeReference": "<string>",
      "volume": {
        "type": "Box",
        "version": "1.0.0",
        "data": [
          123
        ]
      }
    }
  ],
  "dmsContextualizationConfig": {
    "object3DSpace": "<string>",
    "contextualizationSpace": "<string>",
    "revisionInstanceId": {
      "space": "<string>",
      "externalId": "<string>"
    }
  }
}
'

{}