{
  "accounts": [
    {
      "account_holder_name": "\ud558\ud64d\uc815", 
      "account_num_masked": "57920121***", 
      "account_type": "1", 
      "bank_code": "023", 
      "bank_name": "SC\uc81c\uc77c\uc740\ud589", 
      "created_at": "2026-03-12 12:56:12", 
      "fintech_use_num": "120250312588971454727033", 
      "id": 10
    }
  ], 
  "hint": "\uc794\uace0 \uc870\ud68c: /openbanking/balance/{fintech_use_num}"
}