UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sdVu6nra7ijuXCWt7eNLMz+8TPjjrl1yI72UDKH2vog=' 
WHERE 
  key_id = '8349ec8f8112331b4555fb8c14da151394d4d322609cc568492657410dc6c046' 
  AND (
    token = 'sdVu6nra7ijuXCWt7eNLMz+8TPjjrl1yI72UDKH2vog=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )