curl -X POST http://localhost:13579/api/license/activate \
  -H "Content-Type: application/json" \
  -d '{
    "payload": "eyJtYWNoaW5lX2lkIjoiQUJDREVGMTIzNDU2IiwiZXhwaXJ5IjoiIiwiZmVhdHVyZXMiOlsiZ3B1Iiwib2NyIl19",
    "signature": "MEQCIDgWZF4XE0FNZYcSOvjCLeJtilG4QC/YW/pAwt6McY9lAiAWqbPmt/B+Ak9IvtGwLaxDwpPRYpEt15tHa/AiYDtRzw=="
  }'