UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '78GXWPxksK7Sia8AeABgGJ6P4iv+Pwu88Op7Bcla9Xg=' 
WHERE 
  key_id = '339f93b0f061aba75cb59ec4ca81c4d9950b29fb52e34c1582d7b832f86e5156' 
  AND (
    token = '78GXWPxksK7Sia8AeABgGJ6P4iv+Pwu88Op7Bcla9Xg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00040