UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iYrTLCvSON7qgCLNibqQ0i3yQynNbAF4/6vdB5trbJg=' 
WHERE 
  key_id = '4932597257c1a0a5a4d211287a934c80752142783739df6a614941462a737367' 
  AND (
    token = 'iYrTLCvSON7qgCLNibqQ0i3yQynNbAF4/6vdB5trbJg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )