@Antonio
So you wanna show a nice table showing column content of the item modified, right?
If so, I would do the following:

This is the WDL expression assigned as 'Create HTML table' input:
createArray(triggerOutputs()?['body'])
Please note I am using the trigger 'When an item or file is modified' recently released, unsure if it is the one you are currently using.
Please also note you can customize the nr of columns, titles and values displayed in the table:

Just add whatever Header-Value combination you need
Ánimo!