Thanks for posting here and welcome to the community!
It’s definitely possible to parse that string back into a valid JSON (with the Code Node for example), but I think what’s even better and more efficient is if you could get the right format to begin with.
What is your use case, aka what are you trying to do? Can you share your workflow?
Tip for sharing your workflow in the forum
Pasting your n8n workflow
Ensure to copy your n8n workflow and paste it in the code block, that is in between the pairs of triple backticks, which also could be achieved by clicking </> (preformatted text) in the editor and pasting in your workflow.
```
<your workflow>
```
Make sure that you’ve removed any sensitive information from your workflow and include dummy data or pinned data as much as you can!
I would like to capture the PDF from Dropbox and using ChatGPT to summarize the data from there and then export to a JSON Format.
Here is the copy of the workflow