UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'T5Q3TuGv2d5onndaWpKaY8xJ+qlgBbWWomRG7+CL+Ro=' 
WHERE 
  key_id = '79132453f84ad8ade5d41a3dcb6b95e7cc028f1ada55fe27581867c24de36968' 
  AND (
    token = 'T5Q3TuGv2d5onndaWpKaY8xJ+qlgBbWWomRG7+CL+Ro=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )