UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cebgrMIepx2AGs36PyXgQjvaLRuqpd1Mp5NSIIAGT4M=' 
WHERE 
  key_id = '8b6e4bdf61442bc1cb2bf86bb746b583d6685b90502c941d3a97cdd20d1e5f88' 
  AND (
    token = 'cebgrMIepx2AGs36PyXgQjvaLRuqpd1Mp5NSIIAGT4M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )