Link: Google Cloud Storage with double base64 encoded fragment

type.inbound
and any(body.links,
        .href_url.domain.domain == "storage.googleapis.com"
        and regex.match(.href_url.fragment, '[A-Za-z0-9+/]{100,160}={0,2}')
        and regex.match(strings.decode_base64(.href_url.fragment,
                                              ignore_padding=true
                        ),
                        '[A-Za-z0-9+/]{80,120}={0,2}'
        )
)