following JSONs.

Fix parts and a one that will be change for various JSONs.

{
  "fixStructure1" : {
    "field1" : "value1",
    "field2" : "value2",
    "field3" : "value3"
  },
  "fixStructure2" : {
    "field4" : "value4",
    "field5" : "value5"
  },
  "dynamicStructure" : {
    "dynamicField1" : "value6",
    "dynamicField2" : "value7"
  }
}

sample 2

{
  "fixStructure1" : {
    "field1" : "value1",
    "field2" : "value2",
    "field3" : "value3"
  },
  "fixStructure2" : {
    "field4" : "value4",
    "field5" : "value5"
  },
  "dynamicStructure" : {
    "dynamicField1" : "value8",
    "dynamicField3" : "value9"
  }
}

sample 3

{
  "fixStructure1" : {
    "field1" : "value1",
    "field2" : "value2",
    "field3" : "value3"
  },
  "fixStructure2" : {
    "field4" : "value4",
    "field5" : "value5"
  },
  "dynamicStructure" : {
    "dynamicField3" : "value10",
    "dynamicField4" : "value11"
  }
}

What is the best way to structure the classes and deserialize each JSON to the specific object?