Twitch bot command cooldown concept

bot.js

// Warning: Keep in mind that this example has a lot of boilerplate,
// because I want to make sure it's as easy to grasp as possible.
// In a real application you would probably want to wrap the cooldown
// check in a higher order function that easily creates a command and
// checks the cooldowns for you.

// The cooldown manager example
var CooldownManager = {
  cooldownTime: 30000, // 30 seconds
  store: {
    '!comm1': 1493389555431,
  },

  canUse: function(commandName) {
    // Check if the last time you've used the command + 30 seconds has passed
    // (because the value is less then the current time)
    return this.store[commandName] + this.cooldownTime < Date.now();
  },

  touch: function(commandName) {
    // Store the current timestamp in the store based on the current commandName
    this.store[commandName] = Date.now();
  }
}

// Your bot
Bot.on('chat', function(msg) {
  if (msg.indexOf('!comm1') > -1) {
    if (CooldownManager.canUse('!comm1')) {
      bot.send('#channel', 'example');
      CooldownManager.touch('!comm1');
    }
    return;
  }
  
  if (msg.indexOf('!comm2') > -1) {
    if (CooldownManager.canUse('!comm2')) {
      bot.send('#channel', 'example2');
      CooldownManager.touch('!comm2');
    }
    return;
  }
});

Many thanks. Although, how can we implement Global and User cooldown like Streamlabs does?