I want to scrape realtime data from

Because they all call to the same endpoint which makes it difficult to identify the correct table, I click onto each request and look at its Response tab (that is the JSON string).

Below you can see that I found the request that returns the main table's data (the JSON string is usually in 1 long line, you can click Pretty Print (circled in red) to make it easier to read)

Once you found the request that you want, go back to Headers tab and look at the end of the tab, you will find Request Payload section which is the request body. You can click view source to get a plain text version which you use to copy-paste.