Hi,
just decode URL if necessary.Use any MIME tools for that.For LS you need to use http-header paramter to add the User-Agent xy.
Code:
livestreamer --http-header "User-Agent=Mozilla/5.0+(iPad;+CPU+OS+6_0+like+Mac+OS+X)+AppleWebKit/536.26+(KHTML,+?like+Gecko)+Version/6.0+Mobile/10A5355d+Safari/8536.25" "hls://http://spi-live.ercdn.net/spi/smil:fashionboxhd_0.smil/chunklist_b1600000.m3u8" best
greetz