Modify Notification Body After Trigger

I am working on local notifcaitions. I am using SDK 43. I want to make a local scheduled notification and it triggers everyday with diffrent message. Unfortunately, it returns same message every notification. How can i return different message every notification. (It is a test code dismiss trigger time.)

    let message = NOTIFICATION_MESSAGES[Math.floor(Math.random() * NOTIFICATION_MESSAGES.length)];
      content: {
        title: 'title',
        body: message,
      trigger: {
        seconds: 60 * 1, // 1 minute