Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFGUJBiws4Af5/6/MYsQwer2NtZ67wp4JfTJJLfmTMQYSfzNW+9qW4V31MF… (844 chars)"
  }
}