UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gxDeBnalS1CmQQPMOCwVeyWxTIAsWLnx3VPXo0CRpCo=' 
WHERE 
  key_id = '4e751469e11d44c363ba9eb574a132c0c73be82f1a9bed7816821a4c101142c0' 
  AND (
    token = 'gxDeBnalS1CmQQPMOCwVeyWxTIAsWLnx3VPXo0CRpCo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )