{
   "epochs": [ {
      "calculation_time": "13366354501232129",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367019997865048",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "E05582E4DA6A309664351B807ECFCDE7AF82B2476BEDAB07B85FCC550E747F7B",
   "next_scheduled_calculation_time": "13367624797865328"
}
