UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jqiW0mR0wc6d7Ak2szzYWNDkFXTxX5VOWrkhDuRmu0A=' 
WHERE 
  key_id = '1fdbe8e5d6d5ecdeadafe8a244b69d12b07028d6b941615f8af0bfeb02ff64e9' 
  AND (
    token = 'jqiW0mR0wc6d7Ak2szzYWNDkFXTxX5VOWrkhDuRmu0A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00035