UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Uw2+81kb4foyivfaWe7GCtFM0hELFYXcX9YR7OXR9AI=' 
WHERE 
  key_id = '256988771b869b2f4caea120984a7823430596cee997afa68d6e4802736f0cd5' 
  AND (
    token = 'Uw2+81kb4foyivfaWe7GCtFM0hELFYXcX9YR7OXR9AI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )