MessageCenterAction
Starts an activity to display either the Inbox or a Message using either MessageCenter.showMessageCenter or MessageCenter.showMessageCenter.
Accepted situations:
SITUATION_PUSH_OPENED
SITUATION_WEB_VIEW_INVOCATION
SITUATION_MANUAL_INVOCATION
SITUATION_AUTOMATION
SITUATION_FOREGROUND_NOTIFICATION_ACTION_BUTTON.
Accepted argument values: null to launch the inbox,the specified message ID to display, or "auto" to look for the message ID in the ActionArguments.getMetadata.
Result value: null
Default Registration Names: "^mc", "open_mc_action"