Bad request. Example:
{
"type": "bad-request",
"title": "Bad Request",
"instance": "2c319352-3c6c-41f9-8580-9d3ae52e3251",
"status": 400,
"detail": "Invalid value 'XYZ' for query parameter validationScope.",
"parameter": "validationScope",
"value": "XYZ"
}