diff --git a/src/msghandler.jl b/src/msghandler.jl
index 59210c4..400180f 100644
--- a/src/msghandler.jl
+++ b/src/msghandler.jl
@@ -451,9 +451,9 @@ function smartpack(
   # Process each payload in the list
   payloads = msg_payload_v1[]
   for (dataname, payload_data, payload_type) in data
-    @show dataname typeof(payload_data)
+    # @show dataname typeof(payload_data)
 
-    # Serialize data based on type
+    # Serialize data based on type. use bytes as medium for every datatype
     payload_bytes = _serialize_data(payload_data, payload_type)
     
     payload_size = length(payload_bytes)  # Calculate payload size in bytes
@@ -811,7 +811,7 @@ function smartunpack(
   max_retries::Int = 5,
   base_delay::Int = 100,
   max_delay::Int = 5000
-)::JSON.Object{String, Any}
+  )::JSON.Object{String, Any}
 
   # Parse the JSON envelope
   env_json_obj = JSON.parse(msg_json_str)
@@ -834,25 +834,25 @@ function smartunpack(
       # Extract base64 payload from the payload
       payload_b64 = String(payload["data"])
       
-      # Decode Base64 payload
+      # Decode Base64 payload back into bytes (smartpack use bytes as medium for every datatype)
       payload_bytes = Base64.base64decode(payload_b64)  # Decode base64 payload to bytes
       
       # Deserialize based on type
       data_type = String(payload["payload_type"])
-        data = _deserialize_data(payload_bytes, data_type, env_json_obj["correlation_id"])
+      data = _deserialize_data(payload_bytes, data_type, env_json_obj["correlation_id"])
       
       push!(payloads_list, (dataname, data, data_type))
     elseif transport == "link"  # Link transport - payload is at URL
       # Extract download URL from the payload
       url = String(payload["data"])
-        log_trace(env_json_obj["correlation_id"], "Link transport - fetching '$dataname' from URL: $url")  # Log link transport handling
+      log_trace(env_json_obj["correlation_id"], "Link transport - fetching '$dataname' from URL: $url")  # Log link transport handling
       
       # Fetch with exponential backoff using the download handler
-        downloaded_data = fileserver_download_handler(url, max_retries, base_delay, max_delay, env_json_obj["correlation_id"])
+      downloaded_data = fileserver_download_handler(url, max_retries, base_delay, max_delay, env_json_obj["correlation_id"])
 
       # Deserialize based on type
       data_type = String(payload["payload_type"])
-        data = _deserialize_data(downloaded_data, data_type, env_json_obj["correlation_id"])
+      data = _deserialize_data(downloaded_data, data_type, env_json_obj["correlation_id"])
       
       push!(payloads_list, (dataname, data, data_type))
     else  # Unknown transport type