UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r8XDm4sddkvk9eaTHbnxW6dczhLlBGNfeyC8Qy7euvE=' 
WHERE 
  key_id = 'ab40044a10ec01440489044c018c311cc73b0ee931b315a17c064d5e8c6f07e4' 
  AND (
    token = 'r8XDm4sddkvk9eaTHbnxW6dczhLlBGNfeyC8Qy7euvE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )