0879328fcda63cdfd2cfdfac834456ec751ac0236d4cd5fa1a1508c75513?x amz algorithm=aws4 hmac sha256&x amz credential=akiaii6jt62oqlhbx2eq%2f20190117%2fap northeast 1%2fs3%2faws4 request&x amz date=20190117t153627z&x amz expires=900&x amz signedheaders=host&x amz signature=1a6a6e0f8f0eb7b2e8ee09cf67b63684675636735fe3828024c91ec3e0222db2