Add items to a blacklist, according to the blacklist's type.
The response will consist of the following fields:

TypeDescriptionExample
STRINGPlain strings to match against any text-type field."blacklist_value": "abcde"
IP_INETIPv4 or IPv6 IP addresses to blacklist."ip_address": "255.255.255.255"
IP_CIDRClassless Inter-Domain Routing (CIDR) notation IP address ranges to blacklist."cidr": "255.255.255.255/32"
USERSeries of fields that a Unit21 user entity will be matched against.user_data object
BUSINESSSeries of fields that a Unit21 business entity will be matched against.business_data object
Language
Authentication
Header
URL
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