Fixed getting subscription

Description:

The method for getting subscriptions was called recursively when there were no subscriptions in the cache

How to test:

Check the application is running

Changes include:

• Bugfix (a non-breaking change that solves an issue).

Changes in:

• GCP

changed milestone to %M21 - Release 0.24

added GC label

requested review from @Dmitrii_Novikov

assigned to @Rustam_Lotsmanenko

changed milestone to %M20 - Release 0.23

added MRBugfix label

approved this merge request

mentioned in commit 77d50099

merged

picked the changes into the branch cherry-pick-77d50099 with commit 648513c7

mentioned in commit 648513c7

mentioned in merge request !421 (merged)