Create a new contact

curl --request POST \
  --url https://api.wazapin.com/v1/contacts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone_number": "<string>",
  "acquisition_campaign": "<string>",
  "acquisition_medium": "<string>",
  "acquisition_source": "<string>",
  "custom_fields": "<unknown>",
  "email": "<string>",
  "external_id": "<string>",
  "external_source": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "name": "<string>",
  "profile_pic_url": "<string>"
}
'

{
  "data": {
    "acquisition_campaign": "<string>",
    "acquisition_medium": "<string>",
    "acquisition_source": "<string>",
    "average_order_value": "<string>",
    "created_at": "<string>",
    "custom_fields": "<unknown>",
    "email": "<string>",
    "engagement_score": 123,
    "external_id": "<string>",
    "external_source": "<string>",
    "first_conversation_at": "<string>",
    "first_message_at": "<string>",
    "first_name": "<string>",
    "first_purchase_at": "<string>",
    "first_response_at": "<string>",
    "first_seen_at": "<string>",
    "id": "<string>",
    "last_activity_at": "<string>",
    "last_inbound_message_at": "<string>",
    "last_name": "<string>",
    "last_outbound_message_at": "<string>",
    "last_purchase_at": "<string>",
    "lifecycle_stage_changed_at": "<string>",
    "lifecycle_stage_id": "<string>",
    "lifetime_value": "<string>",
    "metadata": "<unknown>",
    "name": "<string>",
    "organization_id": "<string>",
    "phone_number": "<string>",
    "profile_pic_url": "<string>",
    "rfm_frequency": 123,
    "rfm_monetary": 123,
    "rfm_recency": 123,
    "rfm_score": "<string>",
    "rfm_segment": "<string>",
    "total_orders": 123,
    "updated_at": "<string>"
  }
}