diff --git a/etherclient/extras.go b/etherclient/extras.go
index bb9875e..7512485 100644
--- a/etherclient/extras.go
+++ b/etherclient/extras.go
@@ -20,12 +20,20 @@ import (
 
 // TraceCallTransaction contains the fields of the to-be-simulated transaction.
 type TraceCallTransaction struct {
-	From     string       `json:"from"`
-	To       string       `json:"to,omitempty"`
-	Gas      *hexutil.Big `json:"gas,omitempty"`
-	GasPrice *hexutil.Big `json:"gasPrice,omitempty"`
-	Value    *hexutil.Big `json:"value,omitempty"`
-	Data     string       `json:"data"`
+	From                 *common.Address `json:"from"`
+	To                   *common.Address `json:"to,omitempty"`
+	Gas                  *hexutil.Uint64 `json:"gas,omitempty"`
+	GasPrice             *hexutil.Big    `json:"gasPrice,omitempty"`
+	MaxFeePerGas         *hexutil.Big    `json:"maxFeePerGas,omitempty"`
+	MaxPriorityFeePerGas *hexutil.Big    `json:"maxPriorityFeePerGas,omitempty"`
+	Value                *hexutil.Big    `json:"value,omitempty"`
+	Nonce                *hexutil.Uint64 `json:"nonce"`
+
+	// We accept "data" and "input" for backwards-compatibility reasons.
+	// "input" is the newer name and should be preferred by clients.
+	// Issue detail: https://github.com/ethereum/go-ethereum/issues/15628
+	Data  *hexutil.Bytes `json:"data"`
+	Input *hexutil.Bytes `json:"input"`
 
 	// Introduced by AccessListTxType transaction.
 	AccessList *gethtypes.AccessList `json:"accessList,omitempty"`