diff --git a/Cargo.toml b/Cargo.toml
index 3c43456..63cbea3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,8 +31,7 @@ openssl = { version = "0", features = ["vendored"] }
 prost = { version = "0" }
 reqwest = { version = "0", features = ["json"] }
 serde = { version = "1", features = ["derive"] }
-serde_bytes = { version = "0" }
-serde_json = { version = "1" }
+serde_json = { version = "1", features = ["raw_value"] }
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
 tokio-cron-scheduler = { version = "0" }
 uuid = { version = "0", features = ["serde", "v4", "v5"] }
diff --git a/src/api/betting/models.rs b/src/api/betting/models.rs
index 4252bb8..69dd378 100644
--- a/src/api/betting/models.rs
+++ b/src/api/betting/models.rs
@@ -36,8 +36,7 @@ pub struct Betting {
   #[serde(rename = "groupKey")]
   pub group_key: Option<String>,
   /// 게임 데이터
-  #[serde(with = "serde_bytes")]
-  pub detail: Option<Vec<u8>>,
+  pub detail: Option<serde_json::value::Value>,
   /// 보너스 여부
   #[serde(rename = "isBonus")]
   pub is_bonus: bool,
diff --git a/src/api/member_account/api.rs b/src/api/member_account/api.rs
index c44f8b3..e63b30f 100644
--- a/src/api/member_account/api.rs
+++ b/src/api/member_account/api.rs
@@ -70,15 +70,7 @@ impl Api {
           let balance_bota = r.balance_bota.unwrap_or(0.00);
           let balance_sum = r.balance_sum.unwrap_or(0.00);
           let companies = match r.companies {
-            Some(v) => match std::str::from_utf8(v.as_slice()) {
-              Ok(v) => Some(v.to_string()),
-              Err(e) => {
-                return Err(Error {
-                  code: -1,
-                  msg: Some(e.to_string()),
-                });
-              }
-            },
+            Some(v) => v.as_str().map(|ss| ss.to_string()),
             None => None,
           };
 
diff --git a/src/api/member_account/models.rs b/src/api/member_account/models.rs
index 03c5e2e..af0f806 100644
--- a/src/api/member_account/models.rs
+++ b/src/api/member_account/models.rs
@@ -13,8 +13,7 @@ pub struct _GetBalanceForUserResponse {
   pub balance_bota: Option<f64>,
   #[serde(rename = "balanceSum")]
   pub balance_sum: Option<f64>,
-  #[serde(with = "serde_bytes")]
-  pub companies: Option<Vec<u8>>,
+  pub companies: Option<serde_json::value::Value>,
 }
 
 #[derive(Serialize, Deserialize, Debug)]
diff --git a/src/synchronizations/betting_history/synchronizer.rs b/src/synchronizations/betting_history/synchronizer.rs
index f45319c..b9042b3 100644
--- a/src/synchronizations/betting_history/synchronizer.rs
+++ b/src/synchronizations/betting_history/synchronizer.rs
@@ -138,15 +138,7 @@ impl Synchronizer {
           }
         };
         let detail = match b.detail {
-          Some(v) => match std::str::from_utf8(v.as_slice()) {
-            Ok(v) => Some(v.to_string()),
-            Err(e) => {
-              return Err(api::core::models::Error {
-                code: -1,
-                msg: Some(format!("std::str::from_utf8 error: {}", e)),
-              });
-            }
-          },
+          Some(v) => v.as_str().map(|ss| ss.to_string()),
           None => None,
         };