{
"userId": "string",
"chargebackId": "string",
"defenseDocuments": [
{
"defenseReasonCode": "string",
"documentTypeCode": "string",
"documentFiles": [
{
"fileId": "string",
"fileName": "string",
"fileUrl": "string"
}
]
}
]
}
{
"chargebackId": "string",
"chargebackStatus": "PENDING"
}