V6UserOp

{
  "sender": "<string>",
  "nonce": "<string>",
  "initCode": "<string>",
  "callData": "<string>",
  "callGasLimit": "<string>",
  "verificationGasLimit": "<string>",
  "preVerificationGas": "<string>",
  "maxFeePerGas": "<string>",
  "maxPriorityFeePerGas": "<string>",
  "paymasterAndData": "<string>"
}