curl --request PATCH \
  --url https://api.example.com/api/block_documents/{id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "block_schema_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "data": {},
  "merge_existing_data": true
}
'

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}