UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PpGRHePaNKqsm2PsWfZXatS3fguBdCu4hlRKCJuHS/o=' 
WHERE 
  key_id = '764fec5ee58281c0a58933efb534a43e2cd9d8524a14f77b703b58b0e701b588' 
  AND (
    token = 'PpGRHePaNKqsm2PsWfZXatS3fguBdCu4hlRKCJuHS/o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )