{
   "epochs": [ {
      "calculation_time": "13366220344689909",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366885274020862",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "B0440D7CB6061C604BA66A838F8CB8801F08C36B551C62F22A5171DD8857765A",
   "next_scheduled_calculation_time": "13367490074023769"
}
