UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dt7HXs9zThrMGbeXGvYgoqeOX2JtIhOD8paYB/OBipg=' 
WHERE 
  key_id = '1e4518d761a6a7b3536aed6fd25274643f28c30b130d3ba9d73238e0de428606' 
  AND (
    token = 'Dt7HXs9zThrMGbeXGvYgoqeOX2JtIhOD8paYB/OBipg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )