UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+fQSdc5kgzbVycuW7ZX2UkmbOEh1R1uUWrVxHtbVIqQ=' 
WHERE 
  key_id = '38c68b68df8fe28b874b413def4d0eaf5a482b4f30a403f7343f54c41144d5db' 
  AND (
    token = '+fQSdc5kgzbVycuW7ZX2UkmbOEh1R1uUWrVxHtbVIqQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )