Const
Username or client_id extracted from the access token or Authorization header in the inbound request from outside the system.
Use ATTR_ENDUSER_ID in [incubating entry-point](https://github.com/open-telemetry/opentelemetry-js/blob/main/semantic-conventions/README.md#unstable-semconv).
Username or client_id extracted from the access token or Authorization header in the inbound request from outside the system.