curl -X POST http://localhost:13579/api/license/validate \
  -H "Content-Type: application/json" \
  -d '{
    "payload": "eyJtYWNoaW5lX2lkIjoiQUJDREVGMTIzNDU2IiwiZXhwaXJ5IjoiMjAyNi0xMi0zMSIsImZlYXR1cmVzIjpbImdwdSIsIm9jciJdfQ==1",
    "signature": "MEUCIQCIlcIopjSQE9UQpwnvZUn+GNNRuEHx2FzRdoLn50teNwIgHh5MXRWC36NEippKsSZoQjv2jE2ff3ihsbtRLYVFZ9Y="
  }'