Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHDRz5akoM7pjU8xZ7YWikf5U2e1j/Ou6wWQXO3kfRGHC3ddIl0JIi3lVhO… (844 chars)"
  }
}