UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RMubP21Oxg9CV8Z1YRSnDJh+g1I2KjSKXJQkchcemDI=' 
WHERE 
  key_id = '950dad7e2668347732fe7d368fb16726fa5b31e4119e05f563a6bb2aa42974d7' 
  AND (
    token = 'RMubP21Oxg9CV8Z1YRSnDJh+g1I2KjSKXJQkchcemDI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )