UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eJsjdMHADiIuvwrp5L5VzaU1euXe25ElNJy7dEnzrjw=' 
WHERE 
  key_id = 'e51175586cbbd813dec2a78e744a3634e17d85257076bcbd18b9d9948d485a67' 
  AND (
    token = 'eJsjdMHADiIuvwrp5L5VzaU1euXe25ElNJy7dEnzrjw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )