UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'PTYY74HObEa6IJDF1MsZaYn1QsDdqExSzPNlvnwMmGE=' 
WHERE 
  key_id = '26d7b780b522c4b0a8e43f01cd088cb790cf4e7f6d6fad257b28c8a496d7ac64' 
  AND (
    token = 'PTYY74HObEa6IJDF1MsZaYn1QsDdqExSzPNlvnwMmGE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )