UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ukemln6EifQNoaJbb8o8TspqSAmoh83Pj3SyUewOOCA=' 
WHERE 
  key_id = '268bc26d8d6baea8c5aead0c25f23f93d6260b93f29404391a529e54e05aaff7' 
  AND (
    token = 'Ukemln6EifQNoaJbb8o8TspqSAmoh83Pj3SyUewOOCA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )