Is anyone can identify and may be decode the URL below. In face book all Ads have long URLs (you can see it yourself if you go there). Its some sort of encoding and I try to identify and decode it. It's not a Base64 since it has "_" and "-" in the string. The name of parameter I guess is "meta" and the end of the string for some reason has "%2C", which = ",". And I guess everything in the middle is the usable encoded string. That's how far I went in my research so far Any thoughts? URL: i=6002261490001&meta=AAAAAQAQ8PQ1kGD81yEm1bHIHMStQAAAAyv_DGv2lvhXpdnFo3Np48BMrS5n1lJNiGIs-Yed56m536Rk26oXEC7LnTN-NPA4xQsFmbD_9_yMDttMnJNXfy8FQ1Iqp3z3BGeGJyiuVs1NySqz3zyLLwYcLhkLAJefncjFwL89bjIWR5yOvsIuK90W9I6AZS7AnhrLcrsLPme2UenxDNijbS2OjDE-YT-ldT2xr-U82znnaJ_Sl8MvwphwljJ9F-ktIVS0afpvqDpsqfRn6K8Mjlmn30kgKGSpngxIceZEeehY8r9upnzY9YFGwsHuiuh9_FukkICxClhX8EDzdV7-fq2tYXpTH1tIZqiKgbM86ipCm7EKTikbaMs53naLU2HZj4LKCF6X84nM-x2tO7v-GQI6gIcSR3pBn-6MBmCELJGZXDBAqk5eDQ11x-obSVe1rV-MCe3fIPM7ZrjPjX23E5C3wNMQVRQKKG5Sr0WGlhBkVijNEfeIdiWqsFEeJDyhCEMm_R0W29MgBbvV5Yrim2FKcNne73ysjeuAKTBdLLnepOLhfofaDPjJSMmzE0qfn41VER4Ugjn19kUMMCx_oGZHI9rmgRwbCauCDYlMIOQHXbKKwLsjw-zYnH1ZuWEJ82SViifvKrHPJWuG-GjFPfYhszf7xbwN8VZifsAjtnqtMrSDKL8udE7JQEQ6zEpXVxr7mTsanFre302T0e1pIQelu3LM989k_-OmFhii9Pto3sP7VNdU9d7pR4zbT7h6BPSMMT5hP6V1PW9gbGkxO4ZsLUCn056Q_zKMMT5hP6V1PftD7f4HvDnvMg89t9fo4gbJ0gkqpcP4X4Mu9u5fyALimqeTLRZPGYyDv2GOpQTRhcHXmTyoUAxuF7Y0Ixo8lyZu0P6uOrEuOj4Keh5YD0aWJlqWnhDTmRox3qe-ROP4-mOjy7Ga92zRr7oFZvNonvWjiz1hlAd0H4O2eikd4TcTezdUpVdhfAhb4S29yCv4eUInYpBltZls6mE6dnhCNwSGt3kyv7yWYNkrobArn6wD9sObZKSCOEOPZihXABWsDwtxSrXMzHWkW7SuOzH8P2TuORTtLnqd68RQfpYmMv2VCWpzlMgkYv8%2C