diff --git a/cmd/neofs-rest-gw/integration_test.go b/cmd/neofs-rest-gw/integration_test.go
index 3f113a7..2de6e15 100644
--- a/cmd/neofs-rest-gw/integration_test.go
+++ b/cmd/neofs-rest-gw/integration_test.go
@@ -741,7 +741,7 @@ func signToken(t *testing.T, key *keys.PrivateKey, data []byte) *handlers.Bearer
 
 	return &handlers.BearerToken{
 		Token:     base64.StdEncoding.EncodeToString(data),
-		Signature: base64.StdEncoding.EncodeToString(sign),
+		Signature: hex.EncodeToString(sign),
 		Key:       hex.EncodeToString(key.PublicKey().Bytes()),
 	}
 }
@@ -752,7 +752,7 @@ func signTokenWalletConnect(t *testing.T, key *keys.PrivateKey, data []byte) *ha
 
 	return &handlers.BearerToken{
 		Token:     base64.StdEncoding.EncodeToString(data),
-		Signature: base64.StdEncoding.EncodeToString(append(sm.Data, sm.Salt...)),
+		Signature: hex.EncodeToString(append(sm.Data, sm.Salt...)),
 		Key:       hex.EncodeToString(key.PublicKey().Bytes()),
 	}
 }
diff --git a/handlers/auth_test.go b/handlers/auth_test.go
index 09c5b89..eae1b2a 100644
--- a/handlers/auth_test.go
+++ b/handlers/auth_test.go
@@ -58,7 +58,7 @@ func TestSign(t *testing.T) {
 
 	bt := &BearerToken{
 		Token:     bearerBase64,
-		Signature: base64.StdEncoding.EncodeToString(signatureData),
+		Signature: hex.EncodeToString(signatureData),
 		Key:       pubKeyHex,
 	}
 
diff --git a/handlers/containers.go b/handlers/containers.go
index d404ee8..ad8fa50 100644
--- a/handlers/containers.go
+++ b/handlers/containers.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/ecdsa"
 	"encoding/base64"
+	"encoding/hex"
 	"fmt"
 	"net/http"
 	"strconv"
@@ -359,7 +360,7 @@ func prepareSessionToken(bt *BearerToken, isWalletConnect bool) (*session.Token,
 		return nil, fmt.Errorf("can't base64-decode bearer token: %w", err)
 	}
 
-	signature, err := base64.StdEncoding.DecodeString(bt.Signature)
+	signature, err := hex.DecodeString(bt.Signature)
 	if err != nil {
 		return nil, fmt.Errorf("couldn't decode bearer signature: %w", err)
 	}
diff --git a/handlers/objects.go b/handlers/objects.go
index 91e44c9..24249db 100644
--- a/handlers/objects.go
+++ b/handlers/objects.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/ecdsa"
 	"encoding/base64"
+	"encoding/hex"
 	"fmt"
 	"io"
 	"strings"
@@ -337,7 +338,7 @@ func prepareBearerToken(bt *BearerToken, isWalletConnect bool) (*token.BearerTok
 		return nil, fmt.Errorf("can't base64-decode bearer token: %w", err)
 	}
 
-	signature, err := base64.StdEncoding.DecodeString(bt.Signature)
+	signature, err := hex.DecodeString(bt.Signature)
 	if err != nil {
 		return nil, fmt.Errorf("couldn't decode bearer signature: %w", err)
 	}