Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwL17rV+I/cC+/B/lGdpCmKlqkEXtkMv25jS6nX2cXUQYQ9pNRlzp2yyq1Xd… (844 chars)"
  }
}