Having trouble updating SetMultiValuedProfileProperty in a powerapps flow

Question

I am not having any luck finding information on how to specify the propertyValues in the json for updating a multi value field. the field is also tied to a term set. I can update it as a single value, but running into issues trying to update as a multi value.

{ 'accountName': "i:0#.f|membership|[email protected]", 'propertyName': 'TeamName', 'propertyValues': 'Network Support' }

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I'm at a loss, I found some information on using an IList, but everything I try continues to throw errors when running the flow.