e.g. the export produces output like this...

"today\'s"

but based on the JSON Spec...  http://www.json.org   Go to state machine diagram for string  you'll see that a single-quote does not need to be escaped (i.e. no slash \ ) 

The JSON as it is is produced by Zoho Reports, fails validation.

If I replace the \'  with just a single quote '  the validation passes.

note: I am using the Python Client API  and I am using the python replace method to clean-up the data (contents in my snippet)  ....into a valid string s

Please correct the JSON Exporter so it produces JSON that can be validated.