UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b66aI3Vs3llVC+lH7xCsXrtZ44hQshoK6fdHK4qt0Dg=' 
WHERE 
  key_id = '84db596d53202799f7fbf7edefd8c399198fd455afbce04ed7aec06251498de7' 
  AND (
    token = 'b66aI3Vs3llVC+lH7xCsXrtZ44hQshoK6fdHK4qt0Dg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )