Create a contact
Authentication
The API key should be passed in the request headers as api-key for authentication.
Request
Email address of the user. Mandatory if “ext_id” & “SMS” field is not passed.
Set this field to blacklist the contact for emails (emailBlacklisted = true)
Set this field to blacklist the contact for SMS (smsBlacklisted = true)
transactional email forbidden sender for contact. Use only for email Contact ( only available if updateEnabled = true )
Facilitate to update the existing contact in the same request (updateEnabled = true)