Update processing state: next_index=391

processing_state2.json

@@ -390,6 +390,7 @@
     "files/583_UZLIABRC.part1.rar": "processed",
     "files/584_UZLIABRC.part2.rar": "processed",
     "files/585_JUBTJJKSDC.part1.rar": "processing",
-    "files/586_JUBTJJKSDC.part2.rar": "processed"
+    "files/586_JUBTJJKSDC.part2.rar": "processed",
+    "files/587_JUBTJJKSDC.part3.rar": "processing"
   }
 }