UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hklWjQWRnMGaTo/rpvGqzFB8ZWD4oAIW4AyCt8hsRYs=' 
WHERE 
  key_id = '51b7f8db0248e950e03bd7957451329279bbf6a319a5653ceca0d8307e2e2330' 
  AND (
    token = 'hklWjQWRnMGaTo/rpvGqzFB8ZWD4oAIW4AyCt8hsRYs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )