POST请求的Springfox自定义RequestBody

Question

我有一个名为Record的模型类：

import lombok.*;

@Getter
@Setter
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class Record {
    @Schema(required = true, description = "Received bundle",
            example = "{'name':'John','lastName':'Doe'}")
    private String bundle;
}

该服务将Record用作RequestBody：

@Operation(
        summary = "Summary",
        description = "Description",
        responses = {
                @ApiResponse(responseCode = "200", description = "Success")
        }
)
@PostMapping(
        value = "report",
        consumes = APPLICATION_JSON_VALUE
)
public ResponseEntity<Void> report(@RequestBody Record record) {
    System.out.println(record.getBundle());
    return ResponseEntity.ok().build();
}

当我打开swagger-ui时，示例值如下：

{
  "bundle": "{'name':'John','lastName':'Doe'}"
}

相反，我想要以下内容：

{
  'name':'John',
  'lastName':'Doe'
}

如何实现？