curl -L \
--request POST \
--url 'https://studio.edgeimpulse.com/v1/api/{projectId}/raw-data/{sampleId}/metadata' \
--header 'x-api-key: YOUR_API_KEY' \
--header 'Content-Type: application/json' \
--data '{
"metadata": {
"ANY_ADDITIONAL_PROPERTY": "text"
}
}'