module Sentry::Rails::Tracing

def instrument(name, payload = {}, &block)
  # only inject timestamp to the events the SDK subscribes to
  if Tracing.subscribed_tracing_events.include?(name)
    payload[START_TIMESTAMP_NAME] = Time.now.utc.to_f if name[0] != "!" && payload.is_a?(Hash)
  end
  super(name, payload, &block)
end