Why doesn't the command work in Minecraft:?

Titleraw @a actionbar {"rawtext": [{"text": "§4§lOnline time: §g"}, {"score": {"name": "", "objective": "days"}}, { "text": "§6d§g"}, {"score": {"name": "", "objective": "hours"}}, {"text": "§6h§g"}, {" score ": {" name ":" "," objective ":" minutes "}}, {" text "" §6m§g "}, {" score ": {" name ":" * "," objective ": "seconds"}}, {"text": "§6s§r"}

This command doesn't work

If I didn't miscount, the end is missing}

There's no command "titleraw".
After @a it says "actionable"
You can't just take a Tellraw command and write a title at the beginning.

This is how the command works:

/ title @a actionbar [{"score": {"name": "§4§lOnline time: §g", "objective": "days"}}, {"score": {"name": "§6d§ g "," objective ":" hours "}}, {" score ": {" name ":" §6h§g "," objective ":" minutes "}}, {" score ": {" name ": "§6m§g", "objective": "seconds"}}, {"text": "§6s§r"}]