UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WYWC8IZECG8b4kx35zKmlyfZirNh0UMXxu0aABCM+Hk=' 
WHERE 
  key_id = '991a3ba5b0399c69960a206b9351bd086a7180b9ae1904cd4ce22dee13336171' 
  AND (
    token = 'WYWC8IZECG8b4kx35zKmlyfZirNh0UMXxu0aABCM+Hk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00025