curl --request POST \
  --url https://www.dench.com/api/v1/email/campaigns \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Q2 outreach",
  "identityId": "founder@example.com",
  "templateId": "etpl_abc123"
}
'

{
  "campaignId": "ecmp_abc123"
}