update multiple receivers. 🔐

This is just like update, except you can increase or decrease numeric attribute values.<br/> Prepend a "+" or "-" to the value to increase or decrease a value.<br/> <br/> You also can manipulate TAGS in a similar way:<br/> In the array of tags, prepend a "-" to the tag you want to be removed.<br/> To remove all tags with a specific origin, simply specify "*" instead of any tag name.<br/> <br/> Carefully use the fields 'registered', 'activated' and 'deactivated':<br/> - provide 'registered' with current time if receiver is new.<br/> - provide 'activated' only for immedite activation (no DOI mail will work then).<br/> - provide 'deactivated' other than 0 and your receiver will definitely be inactive. 0 will eventually reactivate receivers!<br/> Just omit 'deactivated' unless you know, what you are doing!<br/> <br/> <strong>Example Post Data:</strong><br/> <code> [<br/>     {<br/>         "email":"bruce@gotham.com",<br/>         "attributes": {<br/>             "weapons":"-4"<br/>         },<br/>         "global_attributes": {<br/>             "title":"winner",<br/>             "fights":"+1",<br/>             "enemies":"-1"<br/>         },<br/>         "tags": [ "winner", "-loser", "-joker.*" ]<br/>      }<br/> ]<br/> </code>