TIMESTAMP = 1515088389
SHA256 (rubygem/google-protobuf-3.5.1.gem) = 11a3442d823bf9b2a83cee74e5ada8b1c4e4ced6592b6b96e678e6c653931169
SIZE (rubygem/google-protobuf-3.5.1.gem) = 239616