UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MYWEFH9cBAsXpj4RfAy5KOI8YpnceRgCVVKki1FOZjo=' 
WHERE 
  key_id = '6852ed7d01cb6ab98981e18e06c0b4dab74cafa3bae4be0aca0617be44291a31' 
  AND (
    token = 'MYWEFH9cBAsXpj4RfAy5KOI8YpnceRgCVVKki1FOZjo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )