subscribeBalancedEvent(event, group) {
		const topic = `${this.prefix}.${PACKET_EVENT}B.${group}.${event}`.replace(/\*\*.*$/g, ">");

		if (this.useLegacy)
			this.subscriptions.push(
				this.client.subscribe(topic, { queue: group }, msg =>
					this.receive(PACKET_EVENT, msg)
				)
			);
		else
			this.subscriptions.push(
				this.client.subscribe(topic, {
					queue: group,
					callback: (err, msg) => this.receive(PACKET_EVENT, Buffer.from(msg.data))
				})
			);
	}
Subscribe to balanced event command

@param {String} event
@param {String} group
@memberof NatsTransporter