{
    "type": "recommendation",
    "user_id": "AFNCDDNPER777QFADIGN4K4QHPGA",
    "candidate_category": "product",
    "candidate_list": [
        "B000KKLLPS",
        "B07Z4JHRMP",
        "B01680C4C2",
        "B00414DWQA",
        "B00005MKZ3",
        "B014VC8F0O",
        "B002MUB0XM",
        "B0BMLDRCZW",
        "B07L89YC31",
        "B08H8SKHNT",
        "B093GYZHWK",
        "B01KPZ6E72",
        "B08LQBJRQS",
        "B0BGLVVCR1",
        "B00436QMMW",
        "B005FSHPVO",
        "B013V7GK7U",
        "B0BRH45NG4",
        "B0002IQDBU",
        "B006D9Z1BK"
    ],
    "loc": [
        -1,
        -1
    ],
    "data type": "real"
}