curl --request GET \
  --url https://api.reply.io/v3/contacts/{id} \
  --header 'X-API-Key: <api-key>'

{
  "id": 12345,
  "email": "john.doe@company.com",
  "firstName": "John",
  "lastName": "Doe",
  "fullName": "John Doe",
  "title": "Senior Product Manager",
  "company": "Tech Solutions Inc",
  "domain": "company.com",
  "city": "San Francisco",
  "state": "CA",
  "country": "United States",
  "timeZoneId": "America/Los_Angeles",
  "phone": "+1-415-555-0123",
  "phoneStatus": "verified",
  "linkedInProfile": "https://www.linkedin.com/in/johndoe",
  "linkedInSalesNavigator": "https://www.linkedin.com/sales/profile/123456",
  "linkedInRecruiter": "https://www.linkedin.com/recruiter/profile/789012",
  "companySize": "501-1000",
  "industry": "Software & Technology",
  "notes": "Met at SaaS Conference 2024",
  "addingDate": "2024-03-08T10:00:00Z",
  "customFields": [
    {
      "key": "leadSource",
      "value": "Conference"
    },
    {
      "key": "budget",
      "value": "100k-250k"
    }
  ]
}