X-FlamPix-Signature (HMAC SHA-256).curl --location --request POST 'https://your-api-server.com' \
--header 'X-FlamPix-Signature;' \
--header 'X-FlamPix-Timestamp;' \
--header 'X-FlamPix-Key;' \
--header 'Content-Type: application/json' \
--data-raw '{
"event": "payment_received",
"depositId": "33504022-daeb-4ddf-96f2-fc15aa4e6a52",
"timestamp": "2019-08-24T14:15:22Z",
"data": {}
}'