User specific attributes
[ { "": "value1a" }, { "": "value1b" }, [attributes are not unique] { "": "" }, [value can be empty] { "": "value3" }, ...]
User specific attributes
[ { "": "value1a" },
{ "": "value1b" }, [attributes are not unique]
{ "": "" }, [value can be empty]
{ "": "value3" },
...]