UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'emiJ78Wk7Aqzo7lee4oR2KzhRDZCyz2x2KER3FeTeME=' 
WHERE 
  key_id = '48f97faf3bc140474780f84e0051d6abd485baf6a049665d50208624b1ee0788' 
  AND (
    token = 'emiJ78Wk7Aqzo7lee4oR2KzhRDZCyz2x2KER3FeTeME=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )