Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEIw4KAcr8tYTNy2mT4k9m31vCnrO1wmc8GN/6cIFzJcw5p6d6vlhWEcEE3… (844 chars)"
  }
}