{
   "epochs": [ {
      "calculation_time": "13370522395049305",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379167617890680",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "35AFCAC4E767CF159DCB075D5E343C6F5D382AB25677E13D7007244D1C60AF5A",
   "next_scheduled_calculation_time": "13379772417890876"
}
