curl -i -X PATCH "https://api.box.com/2.0/metadata_taxonomies/enterprise_123456/geography/levels/1" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "displayName": "France",
       "description": "French Republic"
     }'

{
  "displayName": "Continent",
  "description": "Continent",
  "level": 1
}