{
   "epochs": [ {
      "calculation_time": "13366448172613495",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367111865481771",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "D645479CEE0E5B7275826B1347600622855DFC3874487EBC728991CD1849B76E",
   "next_scheduled_calculation_time": "13367716665482010"
}
