message: Adding JSON encoding type to storage endpoint
diff: "minimum": 10485760
  },
  "encoding": {
  - "description": "Encoding that is used to serialize messages to blobs. Supported values are 'avro' and 'avrodeflate'. Default value is 'avro'.",
  - "type": "string"
  + "description": "Encoding that is used to serialize messages to blobs. Supported values are 'avro', 'avrodeflate', and 'JSON'. Default value is 'avro'.",
  + "type": "string",
  + "enum": [
  + "Avro",
  + "AvroDeflate",
  + "JSON"
  + ]
  }
  },
  "required": [
  