Ensuring Unique Rows in Tables Before Paid Enrichment Actions

Hi, I am currently struggling to figure out the best way to protect against duplicate rows prior to running paid enrichment actions. My workflow is as follows: Table 1, do a google maps search based on a HTTP API call that returns 10 entries in an array. I then, in the next column, Write to Other Table, writing out some of the values returned in the array, as seperate lines including the address. However now, I want to make sure that each row is unique in the table based on physical address. Is there a way to do this? TIA.