UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yTfIVAqnG3nKjLZtjoF1NCImgj7DDyM2s046DtVPurc=' 
WHERE 
  key_id = '4debfd4a7c7fe6c635c14300aaf38978890d950d346405c7ce304643b75ac6d0' 
  AND (
    token = 'yTfIVAqnG3nKjLZtjoF1NCImgj7DDyM2s046DtVPurc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )