UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1+wAUBorPVR5Hpb3nROChLh7yumQ5Qrgl8caiUIReA0=' 
WHERE 
  key_id = '6511469feb56975279bc7d7d338a1c3f517474020d1b58344d7c106050adcaed' 
  AND (
    token = '1+wAUBorPVR5Hpb3nROChLh7yumQ5Qrgl8caiUIReA0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )