{
   "epochs": [ {
      "calculation_time": "13366495154768293",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367158121880668",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "1AB2296389561F596558E098F65F32BBF2ACA7FF65688D824C293185D460C100",
   "next_scheduled_calculation_time": "13367762921880820"
}
