{
   "epochs": [ {
      "calculation_time": "13366283447149752",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366947495886944",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "754C2216E7A7B70DCE8A021FE1DB1110EE8D90156FA827B159A5A1A4CE30D45A",
   "next_scheduled_calculation_time": "13367552295887350"
}
