+ for that nickname will not be delivered anymore. The nickname
+ set to watch MUST NOT include any wildcards. Note also that a
+ nickname may match several users since nicknames are not unique.
+ Implementations MAY set limits for how many nicknames client
+ can watch.
+
+ OPTIONALLY this command may also be set to watch clients' actions
+ in the network using their public key or certificate. The
+ <public key> MAY be present, and it is an Argument List Payload
+ where each argument is a Public Key Payload including public key
+ to be added or removed from the watch list. To To add a public
+ key to watch list the argument type is 0x00, and the argument is
+ the public key. To remove a public key from watch list list the
+ argument type is 0x01, and the argument is the public key to be
+ removed from the list. An implementation MAY limit the number of
+ public keys that can be set on the watch list. Implementation MAY
+ add and remove multiple public keys at the same time by including
+ multiple arguments to the <public key> Argument List Payload.