How to search for a specific position in a JSON file?

Besides the recommendations of using a json linter, this extension lets you navigate to a specific offset (position) within a file. You'd want to go to offset 197031914.

Keep in mind that if the file has very long lines, VS Code will not display the entire line. You can try adjusting this limit by following these steps

Just use a JSON linter. There are plenty online, like this one. The linter will point out the specific errors in the syntax of your JSON file.