For processing encrypted FormSG webhooks

POST

/api/v1/webhooks/formsg/singhealth-profile

Form submission received

$	curl -X POST https://dummy-url-see-smartcms-spec/api/v1/webhooks/formsg/singhealth-profile \
>	-H "Content-Type: application/json" \
>	-d '{
>	"encryptedFormData": "SGVsbG8gV29ybGQ=",
>	"formId": "singhealth-profile-2024",
>	"timestamp": "2024-06-15T10:45:00Z",
>	"signature": "a1b2c3d4e5f67890abcdef1234567890abcdef12"
>	}'