subject property
Subject is the entity id in the tenant's own namespace, at most 512 bytes. It is matched EXACTLY against what was recorded — this is a lookup, not a search, and no prefix, pattern or normalisation is applied.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? subject;