{
"projectId": 0,
"designChangeType": "string",
"contractId": 0,
"changePrice": 0,
"changeContent": "string",
"changeDate": "string",
"relaFileName": "string",
"relaFilePath": "string",
"replyUnit": "string",
"replyFileName": "string",
"replyFilePath": "string",
"reviewFileName": "string",
"reviewFilePath": "string",
"reportFileName": "string",
"reportFilePath": "string"
}