How to send double quotes

This is a littlebit connected to question about ChatGPT. I'm searching, trying, fighting...
Now the idea is, that I can't proper authorize wit OpenAI API.

I don't know how to send header with double quotes, this is from OpenAI example:

"Authorization: Bearer xxxxxxxxxxxx"

Instead of this without double quotes, this is how I'think I'm sending:

Authorization: Bearer xxxxxxxxxxxx

Second line - the same problem, this is from example:

"Content-Type: application/json"

How to send double quotes?

Or, maybe it doesn't matter, and I do other things wrong...