task/user_cold_start/goodreads/tasks/task_40.json

{
  "type": "recommendation",
  "candidate_category": "book",
  "user_id": "5cf92993760ca82a759e59158c5b2705",
  "candidate_list": [
    "1359318",
    "3753719",
    "27967307",
    "976204",
    "22741542",
    "34021377",
    "2886949",
    "30768",
    "5886412",
    "22538762",
    "10158325",
    "21544663",
    "12308247",
    "836539",
    "657580",
    "25802059",
    "2233940",
    "13490308",
    "17190278",
    "26039790"
  ],
  "loc": [
    -1,
    -1
  ]
}