Swagger - How to hide request fiends on API wise, for same input model?

Question

Using Swagger with SpringBoot

implementation "org.springframework.boot:spring-boot-starter-web:2.6.7"
implementation "org.springdoc:springdoc-openapi-ui:1.6.8"

I have tow REST end points, One is as follows -

@PostMapping("/sign-up")
public RESTResponse registerUser(@RequestBody User user) {
....
}

For this, In Swagger UI, Request body should be like bellow -

{
  "userName": "string",
  "firstName": "string",
  "lastName": "string",
  "userToken": "string",
  "userType": "EMAIL"
}

Second is as follows -

@PostMapping("/sign-in")
public RESTResponse login(@RequestBody User user) {
..
}

For this, In Swagger UI, Request body should be like bellow -

{
  "userName": "string",
  "userToken": "string"
}

Where RequestBody i.e. User is same for both API, like bellow -

@Data
@NoArgsConstructor
@AllArgsConstructor
@JsonInclude(JsonInclude.Include.NON_NULL)
public class User extends BaseResponse {

    @Schema(accessMode = Schema.AccessMode.READ_ONLY)
    private Long id;
    private String userName;
    private String firstName;
    private String lastName;
    private String userToken;
    private UserType userType;

}

How to make it?