curl --request POST \
  --url https://integration.getmateo.com/api/v1/journey_execution \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "journey_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "contact": {
    "address_line1": "<string>",
    "address_line2": "<string>",
    "birthday": "<string>",
    "campaign_messages_this_month": 123,
    "city": "<string>",
    "country": "<string>",
    "created_at": "<string>",
    "created_by": "<string>",
    "created_by_api_token_id": "<string>",
    "created_by_employee_id": "<string>",
    "created_by_import_id": "<string>",
    "created_by_rule_id": "<string>",
    "deleted_at": "<string>",
    "description": "<string>",
    "display_name": "<string>",
    "email": "<string>",
    "email_marketing_messages_this_month": 123,
    "email_marketing_opt_in": true,
    "external_id": "<string>",
    "facebook": "<string>",
    "facebook_marketing_messages_this_month": 123,
    "facebook_marketing_opt_in": true,
    "fts": "<unknown>",
    "full_name": "<string>",
    "google_business_messaging": "<string>",
    "google_business_messaging_marketing_messages_this_month": 123,
    "google_business_messaging_marketing_opt_in": true,
    "id": "<string>",
    "influenced_revenue": 123,
    "instagram": "<string>",
    "instagram_marketing_messages_this_month": 123,
    "instagram_marketing_opt_in": true,
    "is_blocked": true,
    "last_external_review_rating": 123,
    "last_interaction_at": "<string>",
    "last_internal_review_rating": 123,
    "last_outbound_at": "<string>",
    "last_review_rating": 123,
    "latest_marketing_opt_in_request_sent_at": "<string>",
    "latest_review_request_message_sent_at": "<string>",
    "marketing_opt_in": true,
    "number_of_marketing_opt_in_requests": 123,
    "organisation_id": "<string>",
    "postal": "<string>",
    "postal_marketing_messages_this_month": 123,
    "postal_marketing_opt_in": true,
    "postal_messages_this_month": 123,
    "review_request_message_count": 123,
    "salutation": "<string>",
    "secondary_external_id": "<string>",
    "sms": "<string>",
    "sms_marketing_messages_this_month": 123,
    "sms_marketing_opt_in": true,
    "updated_at": "<string>",
    "updated_by": "<string>",
    "updated_by_api_token_id": "<string>",
    "updated_by_employee_id": "<string>",
    "updated_by_import_id": "<string>",
    "updated_by_rule_id": "<string>",
    "whatsapp": "<string>",
    "whatsapp_marketing_messages_this_month": 123,
    "whatsapp_marketing_opt_in": true,
    "zipcode": "<string>"
  },
  "context": {}
}
'

{
  "success": true,
  "journey_execution_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "contact_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}