f-3.json

Message 1:
-----------
{
  "after": {
    "key1": "value1",
    "key2": "value2",
    "key3": "value3",
    "created_at": 1
  }
}

Message 2:
-----------
{
  "after": {
    "key1": "value1-modified",
    "key2": "value2",
    "key3": "value3-modified",
    "created_at": 2
  }
}

Message 3:
-----------
{
  "after": {
    "key1": "value1-modified",
    "key2": "value2-modification-2",
    "key3": "value3-modified",
    "created_at": 3
  }
}