C# integration
curl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
/subscriptions/{subscriptionId}/providers/Microsoft.Subscriptions.Admin/planscurl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.Subscriptions.Admin/planscurl \
-H "Authorization: Bearer $ACCESS_TOKEN" \
/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.Subscriptions.Admin/plans/{plan}