UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SMUMPi2xe1vL2O4pR8X3hTu0hVMJU8oM21MwISUvvtc=' 
WHERE 
  key_id = '21ded29f298db5080ed9483ff1fbdd360fa63bd75f413f05f419d7c77314c54d' 
  AND (
    token = 'SMUMPi2xe1vL2O4pR8X3hTu0hVMJU8oM21MwISUvvtc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )