# JSON Name/Value Pairs for Importing a Custom Entity

You can import custom entities by using a JSON file. In the JSON file, specify the values that are needed to create the custom entity.

The following table lists the JSON name/value pairs in the import_entity_manager_template.json file. You can define the custom entity by using a Python regular expression or by using an existing entity.

Name | Value
--- | ---
entity_regex | The Python regular expression syntax that defines the new type of personally identifiable information (PII) in the content. For example, to add an entity type for a custom ID number comprised of two upper-case alphabet characters followed by four digits (as in AB1234), enter `[A-Z]{2}[0-9]{4}`. For information about non-capturing groups and backslash characters, see Python Regular Expressions for Custom Entities. For more information about Python regular expressions, go to the Python documentation.
keywords | Keywords that must appear within close proximity to the entity. To define multiple keywords, separate the keywords with a comma:
    "entityXML":{"keywords":"employment,start"},
flags | The sensitivity level for the custom entity. Valid values are: 5, critical 3, high 1, moderate
parentEntityName | An existing entity type to base the custom entity on. For a list of entity types that you can use, see Personally Identifiable Information. For example, to create an entity for employment start date, select the Date entity and add keywords such as "employment" and "start". Only dates that have those keywords in close proximity in the content are identified as potential matches.
    {
    "regularExpression":{},
    "entityXML":{"keywords":"employment,start"},
    "flags":1,
    "parentEntityName":"Date",
    "entityName":"Employment Start Date"
    }
entityName | The name of the custom entity.

## Related Topics

Importing Custom Entities in Entity Manager

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