UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mHm+a312S/4vHVmEy9r9ef0oLud8KcjT4O0IV3GaenM=' 
WHERE 
  key_id = '50a53799ca765df6ed7d51f902b313b08fe925c91c30657f0619e9121efc935e' 
  AND (
    token = 'mHm+a312S/4vHVmEy9r9ef0oLud8KcjT4O0IV3GaenM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )