Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFCHkIzRWd+1y99b5jzWXG25+EtYJCYLIBN8uuWsz3xlDKHDwCtHO71JlDO… (844 chars)"
  }
}