* Problem: tx log attribute value not parsable by some client
Closes: #614
Solution:
- encode the value to json string rather than bytes
Apply suggestions from code review
* rm cdc and changelog
Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: Federico Kunze <federico.kunze94@gmail.com>