UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'PzrvoLbdfOaiOqWzSiuZVxErPneNJNByXoHrSeOm4Fo=' 
WHERE 
  key_id = '8461e4a0cd03e50823926f594f0788b106597821a9bbc04e51d0972aef56e298' 
  AND (
    token = 'PzrvoLbdfOaiOqWzSiuZVxErPneNJNByXoHrSeOm4Fo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )