UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CJulkDl2xwJIiIfFuhcqlRcIiT6UxYEl7SgCGNUKPyE=' 
WHERE 
  key_id = '79f4b7304e3d26a27fda1d512be2513c1adf537dc4cf378790f65268d56f8b2d' 
  AND (
    token = 'CJulkDl2xwJIiIfFuhcqlRcIiT6UxYEl7SgCGNUKPyE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )