Access to activity details with REST API
Hi,
I wanted to export activity details to an excel format, but default export did not meet my requirement, so I tried REST APIs.
Now, I have managed to access to Lead's activities with REST API, but I cannot find a way to retrieve payload contents of webhook.
Is there a way to access the following data via APIs?
click details,

then it shows details, I want to extract payloads.

any idea?
thanks,
Daizen