Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHs5i/Z6t1PUrRG6q3ff+Yq18wGnv8w+U4GV6Vq0KTfnmzclNZvFWp/C7pi… (844 chars)"
  }
}