The problem is that the list you want is inside of the “data” property but you’re not referencing that with your blocks. You’re attempting to get the list from the object but you need to get the list from the “data” property of the object. You can see that in this screenshot from Best JSON Viewer and JSON Beautifier Online where I pasted in your JSON response text (the path to the “Full Name” property is shown at the top of the screenshot):
A fix for this would be to set app variable Response EEID to get property “data” of get object from JSON [response].
I have a JSON parsing tutorial here: API JSON Tutorial (Video)