task/user_cold_start/goodreads/tasks/task_20.json

{
  "type": "recommendation",
  "candidate_category": "book",
  "user_id": "2cad93fc8ea8def3524441a344a1d9b8",
  "candidate_list": [
    "15906831",
    "19417",
    "23204726",
    "28818779",
    "27136328",
    "2649132",
    "1093317",
    "11974935",
    "22855450",
    "2846618",
    "25781601",
    "1303348",
    "643517",
    "37507",
    "34090827",
    "7472044",
    "843803",
    "30333750",
    "23000819",
    "26250491"
  ],
  "loc": [
    -1,
    -1
  ]
}