task/user_cold_start/goodreads/tasks/task_31.json

{
  "type": "recommendation",
  "candidate_category": "book",
  "user_id": "495be2fa627b8807300dfc71a8badcd4",
  "candidate_list": [
    "6581228",
    "198076",
    "22548045",
    "28365588",
    "24440804",
    "1898040",
    "6922335",
    "3003044",
    "22749868",
    "692842",
    "17777988",
    "23730797",
    "3592566",
    "2460639",
    "132960",
    "10722158",
    "3371527",
    "2176416",
    "299169",
    "15041842"
  ],
  "loc": [
    -1,
    -1
  ]
}