Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFZ5LUHe/rFoS8X4Xa6x4eZEB0uDkzphTKsdumMjB5El0gKMpoeL+3Rvg3K… (844 chars)"
  }
}