curl --request POST \
  --url https://api.sprucecollective.co.uk/admin/email/send \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "dynamic_data": {},
  "subject": "<string>",
  "template_id": "<string>",
  "to": "<string>"
}
'

{}