UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rGw7Vp/NtrmdaaYDgerNwqVzNtVpt2OxALEpIx0iClE=' 
WHERE 
  key_id = '993284da8222c35270bdca575ff7331e47c6c73b3ab968074adc85a8c494e14b' 
  AND (
    token = 'rGw7Vp/NtrmdaaYDgerNwqVzNtVpt2OxALEpIx0iClE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )