Generate QR for room or path node

element

Array
(
    [0] => Array
        (
            [fid] => 20817
            [mnemonic] => A2_0_101_szatnia
            [waypoint] => mnemonic
            [PID] => politechnika_poznanska
        )

)

https://innavigo.put.poznan.pl/index.php?r=1&css=m&qr=W3siZmlkIjoiMjA4MTciLCJtbmVtb25pYyI6IkEyXzBfMTAxX3N6YXRuaWEiLCJ3YXlwb2ludCI6Im1uZW1vbmljIiwiUElEIjoicG9saXRlY2huaWthX3Bvem5hbnNrYSJ9XQ==