{
  "@context": "/api/contexts/ConstraintViolation",
  "@id": "/api/validation_errors/0=;1=ba785a8c-82cb-4283-967c-3cf342181b40",
  "@type": "ConstraintViolation",
  "status": 422,
  "violations": [
    {
      "propertyPath": "topics",
      "message": "This value should be of type array|\\Countable.",
      "code": null
    },
    {
      "propertyPath": "topics",
      "message": "This value should be of type array.",
      "code": "ba785a8c-82cb-4283-967c-3cf342181b40"
    }
  ],
  "detail": "topics: This value should be of type array|\\Countable.\ntopics: This value should be of type array.",
  "description": "topics: This value should be of type array|\\Countable.\ntopics: This value should be of type array.",
  "type": "/validation_errors/0=;1=ba785a8c-82cb-4283-967c-3cf342181b40",
  "title": "An error occurred"
}