diff --git a/auth.go b/auth.go
index a3b3b2b..2e8a94c 100644
--- a/auth.go
+++ b/auth.go
@@ -238,15 +238,26 @@ type qrLoginData struct {
 }
 
 type longPollData struct {
-	Code      int    `json:"code"`
-	Desc      string `json:"desc"`
-	Location  string `json:"location"`
-	Psecurity string `json:"psecurity"`
-	Nonce     string `json:"nonce"`
-	Ssecurity string `json:"ssecurity"`
-	PassToken string `json:"passToken"`
-	UserID    string `json:"userId"`
-	CUserID   string `json:"cUserId"`
+	Code      int            `json:"code"`
+	Desc      string         `json:"desc"`
+	Location  string         `json:"location"`
+	Psecurity string         `json:"psecurity"`
+	Nonce     stringOrNumber `json:"nonce"`
+	Ssecurity string         `json:"ssecurity"`
+	PassToken string         `json:"passToken"`
+	UserID    stringOrNumber `json:"userId"`
+	CUserID   stringOrNumber `json:"cUserId"`
+}
+
+type stringOrNumber string
+
+func (value *stringOrNumber) UnmarshalJSON(payload []byte) error {
+	decoded, err := decodeStringOrNumber(payload)
+	if err != nil {
+		return err
+	}
+	*value = stringOrNumber(decoded)
+	return nil
 }
 
 func (client *Client) Login(ctx context.Context) (AuthData, error) {
@@ -403,11 +414,11 @@ func (client *Client) completeQRLogin(ctx context.Context, loginData qrLoginData
 	candidate.ServiceToken = ""
 	serviceTokenReceived := updateAuthDataFromCookies(&candidate, httpClient, response.Request.URL)
 	candidate.Psecurity = data.Psecurity
-	candidate.Nonce = data.Nonce
+	candidate.Nonce = string(data.Nonce)
 	candidate.Ssecurity = data.Ssecurity
 	candidate.PassToken = data.PassToken
-	candidate.UserID = data.UserID
-	candidate.CUserID = data.CUserID
+	candidate.UserID = string(data.UserID)
+	candidate.CUserID = string(data.CUserID)
 	if !serviceTokenReceived || !candidate.complete() {
 		return AuthData{}, &LoginError{Code: -1, Message: "登录回调认证信息不完整"}
 	}
diff --git a/auth_test.go b/auth_test.go
index 9756a1d..f68b569 100644
--- a/auth_test.go
+++ b/auth_test.go
@@ -28,6 +28,22 @@ func TestParseServiceResponse(t *testing.T) {
 	}
 }
 
+func TestParseLongPollResponseAcceptsNumericIdentifiers(t *testing.T) {
+	var result longPollData
+	if err := parseServiceResponse([]byte(`&&&START&&&{"code":0,"nonce":1784441289426,"userId":123456789,"cUserId":987654321}`), &result); err != nil {
+		t.Fatal(err)
+	}
+	if result.Nonce != "1784441289426" {
+		t.Fatalf("nonce = %q, want 1784441289426", result.Nonce)
+	}
+	if result.UserID != "123456789" {
+		t.Fatalf("userId = %q, want 123456789", result.UserID)
+	}
+	if result.CUserID != "987654321" {
+		t.Fatalf("cUserId = %q, want 987654321", result.CUserID)
+	}
+}
+
 func TestSaveAuthDataUses0600AndStableFields(t *testing.T) {
 	directory := t.TempDir()
 	client, err := NewClient(directory)