UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'UozhDHpLUm5vn8bq4ME2XB5nRF/LLO1u3jrDX9pjVn4=' 
WHERE 
  key_id = '140c2e0db6a35bc14336ae56a6aed5e34034342a1df0a2cf0c13624e1976b49a' 
  AND (
    token = 'UozhDHpLUm5vn8bq4ME2XB5nRF/LLO1u3jrDX9pjVn4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00032