UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u6Hr3y46u23CXCj2frtQDorvEhWt3ltItMrzzzxW+ZM=' 
WHERE 
  key_id = '9e0759d4c95c5e680e36182fbeec2b0476c081778de761c2e0b60676bef15b1e' 
  AND (
    token = 'u6Hr3y46u23CXCj2frtQDorvEhWt3ltItMrzzzxW+ZM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )