I bet there is a record between this since and until that you cannot reassemble to send back: 

[ "REQ", "aa2dd",
   {
      "since": 1719870040,
      "until": 1719870100,
      "#p":[
         "8867bed93e89c93d0d8ac98b2443c5554799edb9190346946b12e03f13664450"
      ]
   }
]