If your file is "ELF 32-bit MSB executable, MIPS, N32 MIPS64 rel2 version 1", then you have to use the mipsn32-linux-user variant of QEMU (binary 'qemu-mipsn32').
If your file is "ELF 32-bit MSB executable, MIPS, N32 MIPS64 rel2 version 1",
then you have to use the mipsn32-linux-user variant of QEMU (binary 'qemu-mipsn32').