UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'wrFxBmA+j/Y3+/OusT4s0ZcJ6uNvzLQ1As2e3RB5zXM=' 
WHERE 
  key_id = '52b91c929f02516d063e5212b59bd9d21fab435f0a8c5d618691922d35516fc2' 
  AND (
    token = 'wrFxBmA+j/Y3+/OusT4s0ZcJ6uNvzLQ1As2e3RB5zXM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )