Introduce new observibility - Introduce Subscriber Configuration

[karlem]

Description

Implement the configuration for the subscriber. Ensure dynamic reconfiguration is supported. Test the configuration thoroughly.

Tasks

• Implement subscriber configuration.
• Support dynamic reconfiguration.
• Test the configuration functionality.

Acceptance Criteria

• Subscriber configuration is implemented.
• Dynamic reconfiguration is supported and functional.
• Configuration is thoroughly tested.

Part of #1055