UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rthSM8dBkrkFIehjZk68+MLpj7WOfnC5F7ADBtFs6zM=' 
WHERE 
  key_id = '21ffd94cfb6aef2a1cbd32e657a9b94b26a9c499b6601d669c241edc2db91ef8' 
  AND (
    token = 'rthSM8dBkrkFIehjZk68+MLpj7WOfnC5F7ADBtFs6zM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )