Migrate checkin to user service

Signed-off-by: Asai Neko <sugar@sne.moe>

data/user.go

@@ -78,11 +78,11 @@ func (self *User) Create() error {
 }
 
 type UserUpdateInput struct {
-	Email    *string
-	Nickname *string
-	Subtitle *string
-	Avatar   *string
-	Type     *string
+	Email    *string `json:"email"`
+	Nickname *string `json:"nickname"`
+	Subtitle *string `json:"subtitle"`
+	Avatar   *string `json:"avatar"`
+	Type     *string `json:"type"`
 }
 
 func (self *User) UpdateByUserID(userID uuid.UUID, in *UserUpdateInput) error {