Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwLV4jCqcNxbK9r02YdkCX4/r7et02cf18Gq5a6OA2RWlHfz9QVx8IU0Q5IP… (844 chars)"
  }
}