L2_data is returning a curious snapshot event_time of 1970-01-01T00:00:00Z

Advanced Trade API
1

I think it’s odd to use the origin of unix time, but is this to save memory? I’m new to this orderbook ordeal so please forgive my ignorance, typically my code extends to only a few price_levels deep into the orderbook.

The main thing I am looking for however if possible is: can anyone recommend a solid library for handling calls and websocket to the Advanced Trading API using NodeJS (since I recently got my funds booted from Pro :sob:)?

Thanks in advance,
- One.Insight

events:  {
  type: 'snapshot',
  product_id: 'ETH-BTC',
  updates: [
    {
      side: 'bid',
      event_time: '1970-01-01T00:00:00Z',
      price_level: '0.05266',
      new_quantity: '10.57744521'
    },
    {
      side: 'bid',
      event_time: '1970-01-01T00:00:00Z',
      price_level: '0.05265',
      new_quantity: '19.36120462'
    },
    {
      side: 'bid',
      event_time: '1970-01-01T00:00:00Z',
      price_level: '0.05264',
      new_quantity: '16.22469712'
    },
    {
      side: 'bid',
      event_time: '1970-01-01T00:00:00Z',
      price_level: '0.05263',
      new_quantity: '7.11574342'
    }