UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R88u2Smas2I88aIAIesr9LaDNejgcPd1fMHpphROLtU=' 
WHERE 
  key_id = '3e40088b90d3dbabb34f8b08f1fccbace393ea97c520115c4380694fedd72acf' 
  AND (
    token = 'R88u2Smas2I88aIAIesr9LaDNejgcPd1fMHpphROLtU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )