Decode Google Ad click referrer

Could you help me decode the HTTP referrer?
What data format/encoding is it?
Thank you!

url(
  scheme:  'https'
  host:    'www.googleadservices.com'
  path:    '/pagead/aclk'
  query(
    sa:      'L'
    ai:      'CbwRsmbrhYJe-NdCq3gO-4ZPQBbK4o8hjut_msqgOv-EeEAEg4_uTA2Ddkt2DjA2gAfn6otcDyAEGqQL0jsPrevksPqgDAaoEyQFP0CwgbsvjRQmOeTa_TFn8k7GAUWYt9cELYDc5CHHL7RHIdzLqc0u-Eh3qM0GZYn3PlWhqFR0kxgBdRX-E9fYXyyvzyQxiXsVL5aaEilAMNyh1RlOhj5NkXXB5qK-i6tO-CMCt76iUhrgoNwnSGVQQNgdsNyhSiMt0Z0UlAVcENuPCfGONTs1rJUrZKEfexJhPbpusmozVU2Sx4F0NwTwoCyg1uNde_QwzCqfKYByZupN5ACDQxJP6bOSsvnwkLQX0Ow4Uw9Fc_n7ABJP_m7PRA4gFz-jr1TKgBjfYBgKAB--E3SioB4qcsQKoB9XJG6gH8NkbqAfy2RuoB47OG6gHk9gbqAe6BqgH7paxAqgHpr4bqAfs1RuoB_PRG6gH7NUbqAeW2BvYBwGgCNWUqQSwCALSCAoIgOGA8AIQARgf8ggfY2EteXQtaG9zdC1wdWItOTk4MDM4NTAyMjc4NTM5M5oJEWh0dHBzOi8vaXRtYXAuaHUvsQnSu9fOfCA-O4AKAZgLAaEL_mMf91cQQmzICwLQCxG4DAG4E-wD2BMKghQRGg93d3cueW91dHViZS5jb23QFQGAFwGgFwE'
    ae:      '1'
    num:     '1'
    cid:     'CAAScORo-jk-oUvpO1jM5ce2tZUNoZ4yrggS1ORfKlesxHihrK_Fjgv2fT7DLV6Q1S-0n5kUTK7B4tzlx2PN31Mz3ObtgWqlag-33bSfXxvaWSTiNmd3Ge9jUHxstkucfYGPdF3I4YRTGESfnh24mM1V-Vc'
    client:  'ca-pub-6219811747049371'
    ms:      '[CLICK_MS]'
    nb:      '[NB]'
    nx:      '[NX]'
    ny:      '[NY]'
    dblrd:   '1'
    uid:     'Cl4AZWm_Uq3l9bCCkaZUZ1s90_PUi8AOUANVXuS2IcbARb7Cn0SeBtpe2q_UWnt-2KJKQI6NLB4iOwDD7I2-OFClEZgIPI4ZqY1IqKlZ1xU7_8VqF3jdIgWybmNDVTgTEN2K0IYGGAIYDw'
    sig:     'AOD64_2J43dP6w6PkUxC4IVPUMhDWmGDDA'
    adurl:   'https://itmap.hu/?gclid=EAIaIQobChMI1-65zMXJ8QIVUJV3Ch2-8ARaEAEYASAAEgKY-PD_BwE'
  )
)