{
   "epochs": [ {
      "calculation_time": "13370511937333303",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13376924014620030",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "220174996F2BEEB40AA74FDBCA84A76C406B3153D8EEEBF8A6C31BBC8D1CA548",
   "next_scheduled_calculation_time": "13377528814620127"
}
