curl --request POST \
--url https://api.brewit.ai/v1/auth/signin_external \
--header 'Authorization: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"external_id": "<string>",
"ttl_seconds": 123,
"display_name": "<string>",
"email": "<string>",
"picture": "<string>"
}'