UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'd6XNq+EmFM09EFH1ZKGy65nJKxuNVF5wZoz/Aa1hUoY=' 
WHERE 
  key_id = 'd300524b52ec10080b8aa6d814218c555cef7df674ae8a9ebc574dd8cfbfa41d' 
  AND (
    token = 'd6XNq+EmFM09EFH1ZKGy65nJKxuNVF5wZoz/Aa1hUoY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031