Eliminating Duplicates in Phantombuster Webhook Data Imports

I built a table pulling data from a phantombuster webhook. The webhook delivers the data all in one chunk so we set up a "send to other table" wich breaks the JSON into individual entries in the new table. That works really well, the only problem i habe its that there are a lot of duplicates in the import which is why i am curious if there is a way to eliminate duplicates already during the import from the source tableor to add another step that he only sends updated contacts to a new table which is then the output table with only unique entries? Then i can set up the enrichments in there