action-cable-active-job.rb

# app/channels/messages_channel.rb

class MessagesChannel < ApplicationCable::Channel
  ...
  def receive(data)
    ...
    MessageRelayJob.perform_later(message)
  end
  ...
end

# app/jobs/message_relay_job.rb

class MessageRelayJob < ApplicationJob
  queue_as :default

  def perform(message)
    team = message.team
    MessagesChannel.broadcast_to(team, MessageSerializer.new(message).serialized_json)
  end
end