Lead lists import

{
  "leads": [
    {
      "first_name": "Alex",
      "last_name": "Doe",
      "linkedin_profile_url": "https://www.linkedin.com/in/alex-doe/",
      "profile_picture_url": "https://example.com/alex.jpg",
      "job_title": "Head of Sales",
      "industry": "SaaS",
      "email": "alex@example.com",
      "phone_number": "+1 555 0100",
      "location": "Amsterdam, NL",
      "custom_fields": { "plan": "pro" },
      "company_name": "Acme Inc",
      "company_industry": "Software",
      "company_linkedin_url": "https://www.linkedin.com/company/acme/",
      "company_website_url": "https://acme.com",
      "company_location": "Amsterdam, NL"
    }
  ]
}