UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n3hmFk8KkRstPIwiUwbF8ZBIUaKNB5p/7D3218EQOT4=' 
WHERE 
  key_id = '28c76df4c37b55b194866f1796fca8915a6c1a58f554043918b68793816bdd28' 
  AND (
    token = 'n3hmFk8KkRstPIwiUwbF8ZBIUaKNB5p/7D3218EQOT4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )