curl --location --request POST 'https://snakk-backend-production.up.railway.app/api/chat/operator/message' \
--header 'X-API-Key: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
"sessionId": "f6567dd8-e069-418e-8893-7d22fcf12459",
"userId": "string",
"content": "string"
}'