Retrieve a specific verification transaction.

Retrieve a specific verification transaction that is associated with an authenticator registration.

Entitlements:
- manageAuthenticatorsAnyUser (Manage authenticator registrations for all users)
- readAuthenticatorsAnyUser (Read authenticator registrations for all users)
- manageAuthenticators (Manage authenticator registrations for yourself)
- readAuthenticators (Read authenticator registrations for yourself)
- authnAnyUser (Authenticate any user)
- authn (Authenticate self)
- verifyAuthenticator (Use IBM Verify)