Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCPfUrJcYxVLkCHLhzXNQajz/Nl/idp3pHf2rrpOFw2W1+VV6QsEJzUTptv… (844 chars)"
  }
}