discourse/app/jobs/scheduled/purge_expired_ignored_users.rb

module Jobs
  class PurgeExpiredIgnoredUsers < Jobs::Scheduled
    every 1.day

    def execute(args)
      IgnoredUser.where("created_at <= ? OR expiring_at <= ?", 4.months.ago, Time.zone.now).delete_all
    end
  end
end