Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDqYKs8/RiV6vIAGBQMrz0sPQ4FH29GuOFQCdQxepFL9g+urCRWK9yvJdh/… (844 chars)"
  }
}