Wrong User Credentials (WP 5.3.1)

Thanks for creating a comprehensive plugin for JWT. It looks like it provides everything I need.

After installing it and setting things up, when I try to test Authentication via cURL, I always get “Wrong User Credentials”

Am I doing something wrong?

I’m trying this command:

curl -X POST -d 'email=myemail@exmaple.com&password=mypAssWord' https://example.com/wp-json/custom-jwt-namespace/v1/auth

But the result is always:

{"success":false,"data":{"message":"Wrong user credentials.","errorCode":48}}

Any ideas?

Many thanks!