'ABDQ' => {
                       'id'   => '212197'
                       'wait' => {
                                   'p.txt' => 1,
                                   'q.txt' => 1,
                                 },
                       'done' => {
                                   'a.txt' => 1,
                                   'b.txt' => 1,
                                   'c.txt' => 1,
                                   'd.txt' => 1,
                                   'e.txt' => 1
                                 },
                    },
          ...