chore: added subscription limits check

[mtsitrin]

PR Standards

Opening a pull request should be able to meet the following requirements

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For Author:

• Targeted PR against correct branch
• included the correct type prefix in the PR title
• Linked to Github issue with discussion and accepted design
• Targets only one github issue
• Wrote unit and integration tests
• All CI checks have passed
• Added relevant godoc comments

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For Reviewer:

• confirmed the correct type prefix in the PR title
• Reviewers assigned
• confirmed all author checklist items have been addressed

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After reviewer approval:

• In case targets main branch, PR should be squashed and merged.
• In case PR targets a release branch, PR should be rebased.

[codecov]

Codecov Report

Merging #370 (3834612) into main (5abf3ca) will decrease coverage by 4.24%.
The diff coverage is 16.66%.

@@            Coverage Diff             @@
##             main     #370      +/-   ##
==========================================
- Coverage   55.39%   51.15%   -4.24%     
==========================================
  Files          86       89       +3     
  Lines       13234    14203     +969     
==========================================
- Hits         7331     7266      -65     
- Misses       4879     5933    +1054     
+ Partials     1024     1004      -20     

Impacted Files	Coverage Δ
rpc/json/service.go	64.53% <0.00%> (-1.55%)	⬇️
rpc/client/client.go	51.62% <22.22%> (-0.09%)	⬇️

... and 14 files with indirect coverage changes

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