UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gu0u0Wth7a6fG/t/8loZWYRAeVtseBh60fAFFztXMto=' 
WHERE 
  key_id = '12708966966a6bdd763e22b6e57722abb6ccdfbddd587a8cad64d7eb4d322c2a' 
  AND (
    token = 'Gu0u0Wth7a6fG/t/8loZWYRAeVtseBh60fAFFztXMto=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )