{ "use": "sig", "kty": "EC", "kid": "4UELJx8e0aS9m0CH3fZ0EB7D5aUPICb759zALHFejvc", "crv": "P-256", "alg": "ES256", "x": "7ZdAAMZCFU4XwgblI5RfZouBi8lYmF6DlZusNNnsbm8", "y": "sQr2JdzwD2fgyrymBEXWsxDxFNjjqN64qLLSbLdLZ9Y" }