Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA3wOhR+qbmmjtjuqNTnfGohXc1Z4s1NdWBG1j8clDSxx3dbDb8Vy+9JvVQ… (1,748 chars)"
  }
}