We print payloads in many places (e.g. just after receiving it from the network or just before sending out by the networks, with LmtService and LmtRestReply, respectively). Maybe we should rationalize this, with the following renaming:

* LmtService -> LmtInPayload
* LmtRestReply -> LmtOutPayload
* LmtPayload above -> LmtParsedPayload

I think it would be *much* clear that way.

What do you think?