# [Ride v5] BinaryEntry
⚠️ This is the documentation for the Standard library version 5. We recommend to use version 6. Go to version 6
BinaryEntry is a structure that sets key and value of account data storage binary entry. Adding or changing an entry is performed only if the structure is included in the callable function result.
BinaryEntry(key: String, value: ByteVector)
|1||key||String||Entry key. The maximum size is 400 bytes|
|2||value||ByteVector||Entry value. The maximum size is 5 Kbytes|