{
   "epochs": [ {
      "calculation_time": "13366651249143284",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367313554433649",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "76125CAC0DE629DEA5420C3F3F280C4FFB1A46AFB59E9E8B927B52142E007CF1",
   "next_scheduled_calculation_time": "13367918354433827"
}
