UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'i1NxOuYn4qFwMKxygdYjkx9SsTCrlKy3O8ksxuWHlPg=' 
WHERE 
  key_id = 'af8cc29bd8e47c6f6a4b29255c8726807f47bcf928331cc04f3e6188b5603a52' 
  AND (
    token = 'i1NxOuYn4qFwMKxygdYjkx9SsTCrlKy3O8ksxuWHlPg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )