{
   "epochs": [ {
      "calculation_time": "13366688982165620",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367352811050312",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "4EA70918AB1F3B388817E47921FAAA125DCE25B41BA52D70647338334F687834",
   "next_scheduled_calculation_time": "13367957611050662"
}
