UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gt4gnzQr7usqOV9iafkXeOKAbC9xn2wpOPsZc5d6rwI=' 
WHERE 
  key_id = '21ed62f4d186eba787bc12b041b7b2d55b031917d861383e3c4eecb72c5d6c15' 
  AND (
    token = 'Gt4gnzQr7usqOV9iafkXeOKAbC9xn2wpOPsZc5d6rwI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )