UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Tk9TxW07H8pS6SKbEUbTV/L83H32P4WDeXnI8zwDSkI=' 
WHERE 
  key_id = '8d71dc07ff2869d971d3f6140035865755a096141ec3d2658b74488dcfe130d4' 
  AND (
    token = 'Tk9TxW07H8pS6SKbEUbTV/L83H32P4WDeXnI8zwDSkI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )