Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD6mFPi84qsb8lCJYwpDjYb8nZX/mpnJcyOVYywwE5+nQQa1cssb/Y9qLZG… (844 chars)"
  }
}