unpacked_cookie_data

# File actionpack/lib/action_dispatch/middleware/session/cookie_store.rb, line 64
        def unpacked_cookie_data(env)
          env["action_dispatch.request.unsigned_session_cookie"] ||= begin
            stale_session_check! do
              request = ActionDispatch::Request.new(env)
              if data = request.cookie_jar.signed[@key]
                data.stringify_keys!
              end
              data || {}
            end
          end
        end