# File src/ruby_supportlib/phusion_passenger/vendor/union_station_hooks_core/lib/union_station_hooks_core/transaction.rb, line 85
    def log_activity_begin(name, time = UnionStationHooks.now, extra_info = nil)
      if extra_info
        extra_info_base64 = Utils.base64(extra_info)
      else
        extra_info_base64 = nil
      end
      if time.is_a?(TimePoint)
        message "BEGIN: #{name} (#{time.monotime.to_s(36)}," \
          "#{time.utime.to_s(36)},#{time.stime.to_s(36)}) " \
          "#{extra_info_base64}"
      else
        message "BEGIN: #{name} (#{Utils.monotime_usec_from_time(time).to_s(36)})" \
          " #{extra_info_base64}"
      end
    end