UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u6XqV3FP+svr3JbhDVYRDGmvOjybpnD3nrCpiEaqFYY=' 
WHERE 
  key_id = '503c7d9426f33b929ca16939ae4c241e8fe8422ea9ac2bb9ec0861e32e078d2b' 
  AND (
    token = 'u6XqV3FP+svr3JbhDVYRDGmvOjybpnD3nrCpiEaqFYY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )