{
   "epochs": [ {
      "calculation_time": "13370759834780938",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13377919014938889",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "FCEDECB9E55FF7E71EF92CD1ADF24C57ECE504798AA70DB725E288CBDAAA5B32",
   "next_scheduled_calculation_time": "13378523814938942"
}
