Aerospike backup /Restore

Dear Team,

	How to take Aerospike namespace of customized backup using bin name values.

Please find below our scenario.

Example:Set name “Sample”

id name 1 Balu 2 dilli 3 mathi 4 Arul 5 karthi

Here I need to take the backup using the condition "id=2" into store the outputfile.
We have Multiple users/client data and need to the backup of each users data separately