UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PR+eOOEwldWXFTGaFOS3OJPH8WcMvyE/m4stEAKk6og=' 
WHERE 
  key_id = '5251896f37d1263bdb654ce1b531974b1397179295e067b446e06a6f67d68172' 
  AND (
    token = 'PR+eOOEwldWXFTGaFOS3OJPH8WcMvyE/m4stEAKk6og=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )