UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cEtVXofCDVVr2i8Oqp3Fynmhoik1vbFFfbphE9TvpAs=' 
WHERE 
  key_id = 'b251f90e8ff21fdadf7483a0271c1b24e721caadebfccf94d248048d4aabf436' 
  AND (
    token = 'cEtVXofCDVVr2i8Oqp3Fynmhoik1vbFFfbphE9TvpAs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )