Worked on the NethermindEth/juno repository to unify RPC unsubscribe semantics across versions v6, v7, and v8. The approach involved refactoring the backend logic to centralize unsubscribe handling by reusing the existing v6 handler for newer versions, reducing code duplication and streamlining maintenance. This change improved consistency and reliability in how unsubscribe requests are processed across different RPC versions, making future updates and onboarding more efficient. The work leveraged Go for backend development, with a focus on RPC protocol design and refactoring best practices. The result was a more maintainable and cohesive subscription workflow within the codebase.