UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xnvZkeFHpmjGIVIx2Gz9pPqLudbauVzY4mKw4LMdxv8=' 
WHERE 
  key_id = '8930f91d82bdde728767d016283c81c18345048da6428daca53cb5bab25a0eb6' 
  AND (
    token = 'xnvZkeFHpmjGIVIx2Gz9pPqLudbauVzY4mKw4LMdxv8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )