[management] Refactor peers to use store methods

[bcmmbaga]

Describe your changes

Remove calls to get and save whole account in peers operations.

Issue ticket number and link

Checklist

• [ ] Is it a bug fix
• [ ] Is a typo/documentation fix
• [ ] Is a feature enhancement
• [x] It is a refactor
• [ ] Created tests that fail without the change (if possible)
• [ ] Extended the README / documentation, if necessary

[sonarcloud[bot]]

Quality Gate failed

Failed conditions
3 New issues
3 New Code Smells (required ≤ 0)

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