[
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    "partner_grade": "S급",
    "grade": "최상급",
    "registered_at": "2026-03-04"
  },
  {
    "partner_id": "P03",
    "partner_grade": "A급",
    "grade": "상급",
    "registered_at": "2026-03-04"
  },
  {
    "partner_id": "P03",
    "partner_grade": "B급",
    "grade": "중급",
    "registered_at": "2026-03-04"
  },
  {
    "partner_id": "P03",
    "partner_grade": "C급",
    "grade": "하급",
    "registered_at": "2026-03-04"
  },
  {
    "partner_id": "P07",
    "partner_grade": "특S",
    "grade": "최상급",
    "registered_at": "2026-05-19"
  },
  {
    "partner_id": "P07",
    "partner_grade": "S",
    "grade": "상급",
    "registered_at": "2026-05-19"
  },
  {
    "partner_id": "P07",
    "partner_grade": "A",
    "grade": "중급",
    "registered_at": "2026-05-19"
  },
  {
    "partner_id": "P11",
    "partner_grade": "S급",
    "grade": "상급",
    "registered_at": "2026-07-08"
  },
  {
    "partner_id": "P11",
    "partner_grade": "A급",
    "grade": "중급",
    "registered_at": "2026-07-08"
  },
  {
    "partner_id": "P11",
    "partner_grade": "B급",
    "grade": "하급",
    "registered_at": "2026-07-08"
  }
]