UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R3lKFmBRM8VofpToGYDdI6l52eKTm9cAD40WI+WOLSA=' 
WHERE 
  key_id = '50fe51865dcce7d6af4b5b38f16af3bec36d0dc4e763bb2ce77409d1c0478de0' 
  AND (
    token = 'R3lKFmBRM8VofpToGYDdI6l52eKTm9cAD40WI+WOLSA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )