From what I know from a very old support ticket by now is that the data in IWA_TaskData is some sort of serialised binary data which contains the root data class of the process.
While I don't want to modify it, there are several cases where someone made a mistake in the workflow and some adjustments would be nicer than to restart the whole processes, especially if CEOs are involved.
Is there any sensible way to basically view and modify this data (e.g. a simple String replace)?