{
   "epochs": [ {
      "calculation_time": "13370705562979897",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13377618789578399",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "2B08C2EC6996991E8C21D64B248EF32E84A2DD5AB12178829B5A10777CBDA37C",
   "next_scheduled_calculation_time": "13378223589578454"
}
