using _sumo_metadata with non json logs

[srolel]

hello, we'd like to use _sumo_metadata, but we currently send our logs as text only. would it be possible to send a message like this:

{
  _sumo_metadata: {...},
  message: 'stuff'
}

and have the log appear as just 'stuff' as text, instead of {message: 'stuff'} on sumo? if not, then would you be open to adding a flag and some code to facilitate it?

Thanks!