// UserTypeReserved reserves a (non-existing) user, i.e. to prevent a spam user from re-registering after being deleted, or to reserve the name until the user is actually created later on
// UserTypeUserReserved reserves a (non-existing) user, i.e. to prevent a spam user from re-registering after being deleted, or to reserve the name until the user is actually created later on
UserTypeUserReserved
// UserTypeOrganizationReserved reserves a (non-existing) organization, to be used in combination with UserTypeUserReserved