Use a JSON Data Transform on the Embed-NameValuePair class to map your JSON Array to a Page List of Embed-NameValuePair instances (deserializing your JSON objects as pyName <-> id and pyValue <-> value)
Use a regular (Clipboard) Data Transform to iterate over your Page List and map each instance to a property on your target Address page.
The Data Transform for #2 can call #1 as the first step in its logic. You will need to pass the raw JSON as a parameter, and pass another parameter asking for the JSON Data Transform to be run in DESERIALIZE mode (i.e. turn JSON data into Pega clipboard data).