How to test REST Message with Bearer Token

[Meloper]

I have create the Auth Profil and get a Token after i click on "GET OAuth Token".
USING CLIENT CRENDENTIALS

But after a click on Test i get the Message 

I Guess the TEST Button does not use the created Token, also i guess that my header is designed for a Script.

How i need to adjust the Form that the TEST UI Action will work for that Rest message?
Do i need to copy the TOken hash?

Also it would be nice if someone can show me a script how to request the token and use it

thank you

[Meloper · Accepted solution]

The problem was the short validity of my token of 60 seconds, there is a porperty "glide.rest.outbound.oauth_token_expired_threshold" in ServiceNow that a token 60 seconds before expiration date is already invalid, I have set the value to 15 seconds.
No the Test Button works.