curl --request POST \
  --url 'https://api.nsr.stateset.com/v1/files' \
  --header 'X-API-Key: YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "content": "string",
  "content_base64": "string",
  "content_type": "string",
  "filename": "string",
  "metadata": {},
  "purpose": "string"
}'

{
  "bytes": 1,
  "content_type": "string",
  "created_at": 1,
  "filename": "string",
  "id": "string",
  "metadata": {},
  "object": "string",
  "purpose": "string",
  "status": "string"
}