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I'm looking to subscribe to events emitted from a contract.
I am currently creating a storage key for System Events, subscribing to it and filtering the events to get the one emitted by the contract I am interested in.
Is there a better way to subscribe to the events of a specific contract?
You can use subquery event handler to capture the desired events. It supports filtering based on Modules (the contracts module in this case) and Methods.
This filters all events of all contracts. But to filter the events for a specific contract, you'll have to subscribe to the contract's entity in the schema, and filter this subscription with the contract address
Contracts as the module, it doesn't have the storage for Events