1. Create action.
2. Perform action.update in API similar to this:

   API::Action()->update([
       [
           'actionid' => '51',
           'operations' => [
               [
                   'operationid' => 212,
                   'operationtype' => 0,
                   'esc_period' => '0s',
                   'esc_step_from' => 1,
                   'esc_step_to' => 2,
                   'evaltype' => 0,
                   'opmessage_grp' => [
                       [
                           'usrgrpid' => '7'
                       ]
                   ]
               ]
           ]
       ]
   ]);
   

   Which means excluding "actionid" from "operations" object.

This results in errors:
Undefined index: actionid [... -> CApiWrapper->__call() -> CFrontendApiWrapper->callMethod() -> CApiWrapper->callMethod() -> CFrontendApiWrapper->callClientMethod() -> CLocalApiClient->callMethod() -> CAction->update() -> CAction->updateOperations() -> CConfigFile->{closure}() in include\classes\api\services\CAction.php:1219]
Undefined index: [... z-> CApiWrapper->__call() z-> CFrontendApiWrapper->callMethod() z-> CApiWrapper->callMethod() z-> CFrontendApiWrapper->callClientMethod() z-> CLocalApiClient->callMethod() z-> CAction->update() z-> CAction->updateOperations() z-> CConfigFile->{closure}() in include\classes\api\services\CAction.php:1219]

Maybe it's time to remove "actionid" from "operations" object since it already exists in "action" object.