Testing invoice integration. lnbc100u1p3lntampp5n6677ychen9u8z8wztxaegj0nt24mvdz6vlk8e8n3gl9k9amz6rsdqu2askcmr9wssx7e3q2dshgmmndp5scqzpgxqyz5vqsp55fz0v9lfugre5xag6r60rpjwe8x7jp249ms2rkay0ga96eaq3l9s9qyyssqspdqd7zj7cydk9m2cyrag9zta9nmqpaez7kenspyfz34hz22m02ywz9k5s5veaza9w20ql6qchl7ldctutp8r4wy7dps6cggt7uu2tqpgsvp40