{
   "epochs": [ {
      "calculation_time": "13370524207510223",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13378376454135000",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "DA28E73ADA3CBDB967DAE6F06E34D90B57D66E84C55F4BC04EAFA8959A2996D1",
   "next_scheduled_calculation_time": "13378981254135048"
}
