UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MJt2LvY1+rvhErXMRjhAi/d0kCF+e9HODxMFerzLQDI=' 
WHERE 
  key_id = '850a161f36be72f6a010f7c1d646da9523f6b4aa2aa76af6e10e8a78e5d9db16' 
  AND (
    token = 'MJt2LvY1+rvhErXMRjhAi/d0kCF+e9HODxMFerzLQDI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )