The standard pre-read request control may be included in a delete, modify, or modify DN request to indicate that the server should return a response control with a copy of the entry as it appeared immediately before the changes were applied. The control has an OID of 1.3.6.1.1.13.1, and it takes a value. The following fields may be present in the value-json representation of the value:

The following sample shows the JSON encoding for the control:

{ 
    "oid": "1.3.6.1.1.13.1",
    "control-name": "Pre-Read Request Control",
    "criticality": false,
    "value-json": { 
        "attributes":[ 
            "uid",
            "givenName",
            "sn",
            "cn",
            "mail" 
        ] 
    } 
}