Installation failed: Missing quote: ':lua require()

I'm trying to install the plugin. After inserting this code in vim config:
```
Plug 'chipsenkbeil/distant.nvim', {
\ 'branch': 'v0.3',
\ 'do': ':lua require("distant"):setup()'
\ }
```
I get an error when I run vim:
```
Error detected while processing /Users/unnamed777/.config/nvim/init.vim:
line 67:
E115: Missing quote: ':lua require()
E116: Invalid arguments for function plug#
Press ENTER or type command to continue
```

If I replace `"` with `''` (`':lua require(''distant''):setup()'`), the error disappers and `:PlugInstall` seems to install the plugin successfully. But after I restart vim there is no `:Distant*` commands.

nvim: 0.9.1 LuaJIT 2.1.0-beta3
vim-plug: 0.13.0 (latest)