{
   "epochs": [ {
      "calculation_time": "13366351732661184",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367017278604290",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "EC5C3D5B0624FB9504A86B9321AD6EBB45A62E7619409D5D25C028282AE2CDC9",
   "next_scheduled_calculation_time": "13367622078609138"
}
