UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b2xAaqwfA3A/TBvtBT40Kszq28lucGxRPn6C/G5lMkA=' 
WHERE 
  key_id = '8f78b29639b5a19bc30e579f716089021e234efcd97b962766a929d81f4f419f' 
  AND (
    token = 'b2xAaqwfA3A/TBvtBT40Kszq28lucGxRPn6C/G5lMkA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )