remove SendAsset payload_multi_sig_user & outer_signer

src/bin/multi_sig_signature_collection.rs

@@ -54,7 +54,7 @@ fn demonstrate_signature_collection() -> Result<()> {
     info!("Signer 2 address: {}", signer2_wallet.address());
 
     // Both signers create the same SendAsset action
-    let send_asset = create_send_asset(multi_sig_user, outer_signer, destination, amount, nonce);
+    let send_asset = create_send_asset(destination, amount, nonce);
 
     // Signer 1 signs
     let sig1 = sign_multi_sig_user_signed_action_single(&signer1_wallet, &send_asset)?;
@@ -115,13 +115,7 @@ fn demonstrate_signature_collection() -> Result<()> {
 }
 
 /// Create a SendAsset action - must be identical for all signers
-fn create_send_asset(
-    multi_sig_user: alloy::primitives::Address,
-    outer_signer: alloy::primitives::Address,
-    destination: &str,
-    amount: &str,
-    nonce: u64,
-) -> SendAsset {
+fn create_send_asset(destination: &str, amount: &str, nonce: u64) -> SendAsset {
     SendAsset {
         signature_chain_id: 421614,
         hyperliquid_chain: "Testnet".to_string(),
@@ -132,8 +126,6 @@ fn create_send_asset(
         amount: amount.to_string(),
         from_sub_account: "".to_string(),
         nonce,
-        payload_multi_sig_user: Some(format!("{:#x}", multi_sig_user).to_lowercase()),
-        outer_signer: Some(format!("{:#x}", outer_signer).to_lowercase()),
     }
 }
 

src/exchange/actions.rs

@@ -210,10 +210,6 @@ pub struct SendAsset {
     pub amount: String,
     pub from_sub_account: String,
     pub nonce: u64,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub payload_multi_sig_user: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub outer_signer: Option<String>,
 }
 
 impl Eip712 for SendAsset {
@@ -222,31 +218,7 @@ impl Eip712 for SendAsset {
     }
 
     fn struct_hash(&self) -> B256 {
-        if self.payload_multi_sig_user.is_some() && self.outer_signer.is_some() {
-            let multi_sig_user: Address = self
-                .payload_multi_sig_user
-                .as_ref()
-                .unwrap()
-                .parse()
-                .unwrap();
-            let outer_signer: Address = self.outer_signer.as_ref().unwrap().parse().unwrap();
-
-            let items = (
-                keccak256("HyperliquidTransaction:SendAsset(string hyperliquidChain,address payloadMultiSigUser,address outerSigner,string destination,string sourceDex,string destinationDex,string token,string amount,string fromSubAccount,uint64 nonce)"),
-                keccak256(&self.hyperliquid_chain),
-                multi_sig_user,
-                outer_signer,
-                keccak256(&self.destination),
-                keccak256(&self.source_dex),
-                keccak256(&self.destination_dex),
-                keccak256(&self.token),
-                keccak256(&self.amount),
-                keccak256(&self.from_sub_account),
-                &self.nonce,
-            );
-            keccak256(items.abi_encode())
-        } else {
-            let items = (
+        let items = (
                 keccak256("HyperliquidTransaction:SendAsset(string hyperliquidChain,string destination,string sourceDex,string destinationDex,string token,string amount,string fromSubAccount,uint64 nonce)"),
                 keccak256(&self.hyperliquid_chain),
                 keccak256(&self.destination),
@@ -257,8 +229,7 @@ impl Eip712 for SendAsset {
                 keccak256(&self.from_sub_account),
                 &self.nonce,
             );
-            keccak256(items.abi_encode())
-        }
+        keccak256(items.abi_encode())
     }
 }
 

src/exchange/exchange_client.rs

@@ -368,8 +368,6 @@ impl ExchangeClient {
             amount: amount.to_string(),
             from_sub_account,
             nonce: timestamp,
-            payload_multi_sig_user: None,
-            outer_signer: None,
         };
 
         let signature = sign_typed_data(&send_asset, wallet)?;
@@ -1206,8 +1204,6 @@ impl ExchangeClient {
             amount: amount.to_string(),
             from_sub_account: "".to_string(),
             nonce: timestamp,
-            payload_multi_sig_user: Some(format!("{:#x}", multi_sig_user).to_lowercase()),
-            outer_signer: Some(format!("{:#x}", self.wallet.address()).to_lowercase()),
         };
 
         let signatures = sign_typed_data_multi_sig(&send_asset, wallets)?;
@@ -1249,8 +1245,6 @@ impl ExchangeClient {
             amount: amount.to_string(),
             from_sub_account: "".to_string(),
             nonce: timestamp,
-            payload_multi_sig_user: Some(format!("{:#x}", multi_sig_user).to_lowercase()),
-            outer_signer: Some(format!("{:#x}", self.wallet.address()).to_lowercase()),
         };
 
         let signatures = sign_typed_data_multi_sig(&send_asset, wallets)?;
@@ -1299,8 +1293,6 @@ impl ExchangeClient {
     ///     amount: "100".to_string(),
     ///     from_sub_account: "".to_string(),
     ///     nonce: 123456789,
-    ///     payload_multi_sig_user: Some(format!("{:#x}", multi_sig_user).to_lowercase()),
-    ///     outer_signer: Some("0x...".to_lowercase()),
     /// };
     ///
     /// let sig1 = sign_multi_sig_user_signed_action_single(&wallet1, &send_asset)?;
@@ -1340,8 +1332,6 @@ impl ExchangeClient {
             amount: amount.to_string(),
             from_sub_account: "".to_string(),
             nonce: timestamp,
-            payload_multi_sig_user: Some(format!("{:#x}", multi_sig_user).to_lowercase()),
-            outer_signer: Some(format!("{:#x}", self.wallet.address()).to_lowercase()),
         };
 
         let mut action =
@@ -1391,8 +1381,6 @@ impl ExchangeClient {
             amount: amount.to_string(),
             from_sub_account: "".to_string(),
             nonce: timestamp,
-            payload_multi_sig_user: Some(format!("{:#x}", multi_sig_user).to_lowercase()),
-            outer_signer: Some(format!("{:#x}", self.wallet.address()).to_lowercase()),
         };
 
         let mut action =
@@ -1659,8 +1647,6 @@ mod tests {
             amount: "100".to_string(),
             from_sub_account: "".to_string(),
             nonce: 1583838,
-            payload_multi_sig_user: None,
-            outer_signer: None,
         };
 
         let mainnet_signature = sign_typed_data(&mainnet_send, &wallet)?;
@@ -1675,8 +1661,6 @@ mod tests {
             amount: "50".to_string(),
             from_sub_account: "".to_string(),
             nonce: 1583838,
-            payload_multi_sig_user: None,
-            outer_signer: None,
         };
 
         let testnet_signature = sign_typed_data(&testnet_send, &wallet)?;
@@ -1692,8 +1676,6 @@ mod tests {
             amount: "100".to_string(),
             from_sub_account: "0xabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd".to_string(),
             nonce: 1583838,
-            payload_multi_sig_user: None,
-            outer_signer: None,
         };
 
         let vault_signature = sign_typed_data(&vault_send, &wallet)?;