minecraft-packets/minecraft-packets/data/pc/1.14.4/from-server/multi_block_change/5.json

An easy way to query PrismarineJS/minecraft-packets

{
  "chunkX": 3,
  "chunkZ": 14,
  "records": [
    {
      "horizontalPos": 44,
      "y": 45,
      "blockId": 42
    },
    {
      "horizontalPos": 27,
      "y": 45,
      "blockId": 42
    }
  ]
}