Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEtiAWkD6QYYA93BZ4mg4pCLuzvLP5MxDMnorKHt6nEq2d/zA/c6rkU8Jb+… (1,748 chars)"
  }
}