15291c20ae883c7e50b34875f67e18cde89448370e4600739625c037c6fd?x amz algorithm=aws4 hmac sha256&x amz credential=akiaii6jt62oqlhbx2eq%2f20180717%2fap northeast 1%2fs3%2faws4 request&x amz date=20180717t021341z&x amz expires=900&x amz signedheaders=host&x amz signature=bff964aecc8b33b80895ac557741a36687975bf407eede75264d32c7d42531c2

若武者MTBライダー 世界大学選手権(ポルトガル)に参戦!