UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iu5nfmy0KGCG3wAPWfurzd3CQWI5Q0GoUM1Oq8teKHI=' 
WHERE 
  key_id = '20938700407ea8d49880b2c6560543b4f7f605a6f1de3a916b3884d64d2e16b3' 
  AND (
    token = 'iu5nfmy0KGCG3wAPWfurzd3CQWI5Q0GoUM1Oq8teKHI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )