How can we render a multipart request correctly?

Today we have the following request:

curl --request POST \
     --url http://{host} \
     --header 'Content-Type: multipart/form-data' \
     --header 'Authorization: Bearer <TOKEN>' \
     --form '
service={
     "id": "svc12345",
     "sourceType": "my-alerting-solution",
     "sourceInstance": "my-company",
     "name": "my-service",
     "description": "The one and only service with 110% uptime",
     "data": {
          "number_of_incidents": "2",
          "monitoring_dashboard": "https://my-company.my-alerting-solution.com/my-service"
     }
};type=application/json'
--form 'bom=@<file>'

But when we see it on Readme it's rendered like this:

Is there a way to render it like this and not as a form:

Thanks