UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zWtmCViYLfFHS9Ke9Wk7xI5xbFgP7PQlrxl/Hjdpq6Q=' 
WHERE 
  key_id = '51e053a138ffcc10bc23e830ceaf2434000c12a6418a7a8b6b605486e2f9ad9c' 
  AND (
    token = 'zWtmCViYLfFHS9Ke9Wk7xI5xbFgP7PQlrxl/Hjdpq6Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )