UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/2ElmiNW1xIhh9YW51ScVE5WdW+KfUxoRYGM/TolbYQ=' 
WHERE 
  key_id = '51a1e63d9469bf6ac00201aeb253fe719ffa86096f916d0afa2aa09dbf64d493' 
  AND (
    token = '/2ElmiNW1xIhh9YW51ScVE5WdW+KfUxoRYGM/TolbYQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )