frpc 服务启动时 Failed at step EXEC spawning /usr/local/frp/frpc: Permission denied

[Unit]
Description=Frp Client Service
After=network.target syslog.target
Wants=network.target

[Service]
Type=simple
User=nobody
Restart=on-failure
RestartSec=5s
ExecStart=/usr/local/frp/frpc -c /usr/local/frp/frpc.toml

[Install]
WantedBy=multi-user.target

命令行方式正常，但是 systemctl 方式启动失败

Dec 27 10:56:01 photon-102 (frpc)[400718]: frpc.service: Failed to execute /usr/local/frp/frpc: Permission denied
Dec 27 10:56:01 photon-102 (frpc)[400718]: frpc.service: Failed at step EXEC spawning /usr/local/frp/frpc: Permission denied