Add a task to print payloads to publish and signal a new subgraph

[abarmat]

No description provided.

[codecov]

Codecov Report

Merging #563 (e7ac90e) into dev (bc90412) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev     #563   +/-   ##
=======================================
  Coverage   90.58%   90.58%           
=======================================
  Files          37       37           
  Lines        1795     1795           
  Branches      293      293           
=======================================
  Hits         1626     1626           
  Misses        169      169           

Flag	Coverage Δ
unittests	90.58% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update bc90412...e7ac90e. Read the comment docs.