[
  {
    "payment_key": "tgen_20260907211500M01T",
    "project_id": "M-01",
    "user_id": "u-0000",
    "amount": 4900,
    "paid_at": "2026-09-07T21:15:02+09:00",
    "refunded_at": "2026-09-07T21:20:40+09:00",
    "cancel_reason": "출시 전 결제 테스트",
    "source": "live"
  },
  {
    "payment_key": "tgen_20260915000712M01a",
    "project_id": "M-01",
    "user_id": "u-1002",
    "amount": 4900,
    "paid_at": "2026-09-15T00:07:12+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260915000712M01a",
    "project_id": "M-01",
    "user_id": "u-1002",
    "amount": 4900,
    "paid_at": "2026-09-15T00:07:12+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260918200005M01b",
    "project_id": "M-01",
    "user_id": "u-1014",
    "amount": 9900,
    "paid_at": "2026-09-18T20:00:05+09:00",
    "refunded_at": "2026-09-20T09:00:31+09:00",
    "cancel_reason": "첨삭이 너무 짧아요",
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260920131044M01c",
    "project_id": "M-01",
    "user_id": "u-1020",
    "amount": 4900,
    "paid_at": "2026-09-20T13:10:44+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260905083120M02a",
    "project_id": "M-02",
    "user_id": "u-2044",
    "amount": 6900,
    "paid_at": "2026-09-05T08:31:20+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260912190000M03a",
    "project_id": "M-03",
    "user_id": "u-3007",
    "amount": 12000,
    "paid_at": "2026-09-12T19:00:00+09:00",
    "refunded_at": "2026-09-19T19:00:00+09:00",
    "cancel_reason": "추천 코스가 우리 동네가 아니에요",
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260913200000M03b",
    "project_id": "M-03",
    "user_id": "u-3012",
    "amount": 12000,
    "paid_at": "2026-09-13T20:00:00+09:00",
    "refunded_at": "2026-09-21T20:00:00+09:00",
    "cancel_reason": "한 번 써 보니 충분했어요",
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260914130015M03c",
    "project_id": "M-03",
    "user_id": "u-3020",
    "amount": 12000,
    "paid_at": "2026-09-14T13:00:15+09:00",
    "refunded_at": "2026-09-14T15:10:02+09:00",
    "cancel_reason": "코스가 비싼 가게뿐이에요",
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260906071502M04a",
    "project_id": "M-04",
    "user_id": "u-4003",
    "amount": 8900,
    "paid_at": "2026-09-06T07:15:02+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260927062233M06a",
    "project_id": "M-06",
    "user_id": "u-6002",
    "amount": 5900,
    "paid_at": "2026-09-27T06:22:33+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  },
  {
    "payment_key": "tgen_20260915221809M08a",
    "project_id": "M-08",
    "user_id": "u-8010",
    "amount": 4900,
    "paid_at": "2026-09-15T22:18:09+09:00",
    "refunded_at": null,
    "cancel_reason": null,
    "source": "replay"
  }
]