You can do that with Postman Client chrome extension. Install extension and provide details like below;
And click send button. Important point here;
-H
will be sent in header fields,
-u
needs to be convert like below and send s in header;
Authorization: Basic base64_encode(username:password)
in your case it will be;
Basic RU9KMlMtWjZPb05fbGVfS1MxZDc1d3NaNnkwU0ZkVnNZOTE4M0l2eEZ5WnA6RUNsdXNNRVVrOGU5aWhJN1pkVkxGNWNaNnkwU0ZkVnNZOTE4M0l2eEZ5WnA=
-d
will be sent as url-form-encoded form.
Alternatively you can perform this action by using Git Bash. Install Git Bash from here
And open git bash terminal, and copy/paste your curl query like below;