Extra sign-in addresses (see IdentityUserAlias)
Where mail to this user goes — email or a verified alias
OptionalcreatedThe canonical address. Immutable for the life of the account.
OptionalemailEvery address that signs in: email plus the verified aliases
OptionalmetadataOptionalupdated
An identity user — the sign-in record behind a UserProfile. One per (email, organization). Distinct from the profile: the profile is the platform-side record (apiKey, roles, metadata read by apps); the identity user holds credentials and sign-in addresses.