{
   "epochs": [ {
      "calculation_time": "13366363377517590",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367028783791800",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "255C9F717C529372916E9F5F6ED7C07D06109F4522A8C8B0F4CF4FC2C405722A",
   "next_scheduled_calculation_time": "13367633583791978"
}
