Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwERu6zmNZ8DlcE+9bR9uc4xQlXA3qNH4jqOry6Uw6B/xSr1Nb60W3vIjPFO… (844 chars)"
  }
}