Add Leads to Campaign

curl --request POST \
  --url https://api.themagicdrip.com/v1/campaign/leads/{id} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "leadsWithCustomVariables": [
    {
      "linkedInPublicUrl": "https://www.linkedin.com/in/john-doe",
      "customVariables": {
        "website": "https://www.google.com",
        "title": "CEO"
      },
      "firstName": "John",
      "lastName": "Doe",
      "company": "Google",
      "companyLinkedInUrl": "https://www.linkedin.com/company/google"
    }
  ]
}'

{
  "totalLeadsAddedToWorklow": 123
}