Does my Stripe create tokens cURL command import look normal?

Guys,

I've imported this into Xano:

curl https://api.stripe.com/v1/tokens  
   -u sk_test_51MKlHvJaJ66qam0ro2Aoud3nRpdL91gbsUg0Wp9NM3D0Fniqy2yx66oy5YkaNjkX3HotTBPDcQglAiffKypWj2SV00MOzxycdY:  
   -d 'card[number]'=4242424242424242  
   -d 'card[exp_month]'=5  
   -d 'card[exp_year]'=2024  
   -d 'card[cvc]'=314 

and I see this 'Basic' mention and base64 thing populated in the headers:

Are these normal?