Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGH5OWdtm9z+2d0r09HX4LPOSW4DH8Y1NkmWQ12NuMXKwKkiOjQ68ORyuEZ… (844 chars)"
  }
}