{
   "BlockingStatusNotes":[
      "this is blocking note via fiddler",
      "another blocking"
   ],
   "NonBlockingStatusNotes":[
      "this is a non blocking note via fiddler",
      "another non blocking"
   ]
}

      

BlockingStatusNotes and NonBlockingStatus notes cannot be null and cannot be greater than 4000 chars combined individually

The similar api call can also be used for modify, delete patron blocking and non blocking notes, If you wish to modify the notes just call this with updated text, If you wish to delete the note just have BlockingStatusNotes or NonBlockingStatusNotes set to null.