UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c4QFXv5vWYsT0G/1sMJ+Bs10jpfx6fpvkETtYdLb+zk=' 
WHERE 
  key_id = '51f64a6560a446cbfe9edaff84abf9f3ce7169654e6f65eed4777e319d4e95ae' 
  AND (
    token = 'c4QFXv5vWYsT0G/1sMJ+Bs10jpfx6fpvkETtYdLb+zk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )