Sign authorization entries - Stellar Developer Docs

In order to take advantage of contract authorization, you can use Varial’s API to sign an authorization entry. A good example of how signing an authorization entry works can be found in the authorizeEntry helper of stellar-sdk. Like in the helper, you can construct a HashIdPreimageSorobanAuthorization and use the xdr representation of that structure to call await varialSdk.signAuthEntry(preimageXdr) (from @stellar/varial-sdk). This call will return an object whose signedAuthEntry field holds the signed hash of the HashIdPreimageSorobanAuthorization passed in, as a base64 string, which can then be used to submit to the network during a contract authorization workflow.