enh: speed up insert json parsing

[huskar-t]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 79.16667% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 68.18%. Comparing base (04c8899) to head (0a56cbd).

Files	Patch %	Lines
controller/ws/ws/handler.go	78.26%	7 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #288      +/-   ##
==========================================
- Coverage   68.35%   68.18%   -0.17%     
==========================================
  Files          84       85       +1     
  Lines        9787     9814      +27     
==========================================
+ Hits         6690     6692       +2     
- Misses       2412     2438      +26     
+ Partials      685      684       -1     

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