Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAGB3qr0x+wEmQy7bimHdyB+f6APk9v2YqpA6xaGLnuU2G/2wxGlkQgI6oA… (844 chars)"
  }
}