UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UEUKgO/r3JlM9viLy/08jtxYe72YJOI6ci/dLuPb0Mc=' 
WHERE 
  key_id = '5a844686421ed431cd67a307161e84af4620c6bde908568b45417a697171bd0f' 
  AND (
    token = 'UEUKgO/r3JlM9viLy/08jtxYe72YJOI6ci/dLuPb0Mc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )