The example I provided early did it exactly for me.
Output
{
"path" => "/tmp/time.data",
"@timestamp" => 2017-03-24T09:01:43.541Z,
"@version" => "1",
"host" => "JImmys-MacBook-Pro.local",
"message" => "2017-03-24T09:01:43.541",
"type" => "apache-access",
"event_timestamp" => "2017-03-24T09:01:43.541Z"
}