CREATE TABLE `fc_events`.`subscribers` (
  `id` varchar(255) NOT NULL,
  `event_id` varchar(255) DEFAULT NULL,
  `user_id` varchar(255) DEFAULT NULL,
  `joined_at` datetime DEFAULT NULL,
  `leave_at` datetime DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `id_UNIQUE` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci