Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEVX3IN2vKu9vjtaGKEi/dtFUUxTlA9KY87UJjF5W8Lz1aJTG/DCORQg9ov… (844 chars)"
  }
}