s = '2014-01-09T06:16:53.748849+00:00 heroku[router]: at=info method=POST fwd="94.66.255.106" dyno=web.12 connect=12ms service=21ms status=200 bytes=78'
puts s.gsub(/[^\s=]+=/, '')
cyA9ICcyMDE0LTAxLTA5VDA2OjE2OjUzLjc0ODg0OSswMDowMCBoZXJva3Vbcm91dGVyXTogYXQ9aW5mbyBtZXRob2Q9UE9TVCBmd2Q9Ijk0LjY2LjI1NS4xMDYiIGR5bm89d2ViLjEyIGNvbm5lY3Q9MTJtcyBzZXJ2aWNlPTIxbXMgc3RhdHVzPTIwMCBieXRlcz03OCcKcHV0cyBzLmdzdWIoL1teXHM9XSs9LywgJycp