Upload SEPA File API

curl --location --request POST '/submit/transferOrder' \
--header 'Content-Type: application/json' \
--data-raw '{
  "merNo": 123456,
  "tradeNo": "T123456789",
  "sign": "abcdef123456",
  "infoList": [
    {
      "infoType": "1",
      "infoContent": "name"
    },
    {
      "infoType": "2",
      "infoContent": "qwer@gmail.com"
    }
  ],
  "fileList": [
    {
      "fileType": "21",
      "fileContent": "IyDov63ku6Mx",
      "fileName": "fileName1",
      "suffix": ".png"
    },
    {
      "fileType": "22",
      "fileContent": "IyDov63ku6Mx",
      "fileName": "IyDov63ku6Mx",
      "suffix": ".png"
    }
  ]
}'