curl --request POST \
  --url https://api.app.hrizn.io/v1/public/gbp/posts/{id}/reschedule \
  --header 'X-API-Key: <api-key>'

{
  "error": {
    "code": "validation_error",
    "message": "keyword: Required",
    "details": {},
    "request_id": "<string>"
  }
}