encoding=json+base64:
W3sicG9zIjogImVwdWJjZmkoLzIvMi80LzIvNEA5NC43Njo4NS4xNCkiLCAicG9zX3R5cGUiOiAiZXB1
YmNmaSIsICJ0aW1lc3RhbXAiOiAiMjAyNC0wOC0yNlQxODozODozMS42OTA1MzIrMDA6MDAiLCAidHlw
ZSI6ICJsYXN0LXJlYWQifV0=