{
   "epochs": [ {
      "calculation_time": "13366656988863400",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367319713935833",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "F2CC002A694A32895872902D77E5DAD6425583C1A049B7E0BC9C2D3212FB34BD",
   "next_scheduled_calculation_time": "13367924513936004"
}
