Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCetDt6rfGY3nH8i3ZETe6UcR8vV6SVuzW4D7VE2FSP8Wu1/VhyeNnp6f7x… (1,748 chars)"
  }
}