1c84073d42fe79b39a08df1a879e64368b6e36a0541f69fcd67adc96ad36?x amz algorithm=aws4 hmac sha256&x amz credential=akiaii6jt62oqlhbx2eq%2f20190922%2fap northeast 1%2fs3%2faws4 request&x amz date=20190922t015948z&x amz expires=900&x amz signedheaders=host&x amz signature=6295ab2ef347ee9cca6d60f35521499a121caee0e310e17100c84af23be2ebbd