How to add wildcard CNAME with api?

Using the following, I’m trying to add a wildcard CNAME:

curl -X POST “https://api.digitalocean.com/v2/domains/toggen.com/records” -H ‘Content-Type: application/json’ -H “Authorization: Bearer $TOKEN” -d ‘{“type”:“CNAME”,“name”:“*”,“data”:"’$DOMAIN’."}’

I get back:

{“domain_record”:{“id”:null,“type”:“CNAME”,“name”:null,“data”:“example.com.”,“priority”:null,“port”:null,“weight”:null}}

No record is inserted. I can add other records no problem but it doesn’t seem to like the wildcard character.