Track Send and Read (or Open) In Dropbox

I have a FileMaker database that tracks information for notifications (warning and fines) that are exported into (.pdfs) and then manually uploaded to Dropbox. I recently found an example of someone who used drag-and-drop into a container field and then uploads the file to Dropbox using FileMaker Pro 16 and json. I want to be able to track when a file is accessed (read or downloaded) and by whom (either an email address or the person's name or other unique identifier) to confirm that they have at least opened or downloaded the file with a datetimestamp. I don't want a dependency on the person being a Dropbox user. Is this functionality available through an API in Dropbox through json? Has anyone already done this with FileMaker?

I would want to be able to download the following information from Dropbox to FileMaker through an API:

1. The filename.
2. The datetimestamp that the file was opened or downloaded.
3. The unique identifier of the person who downloaded the file (email address, name, etc.)