UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z4R+U3NTA95OBeLD6mfY+yHQgde+PN4dRhdteypW+Jc=' 
WHERE 
  key_id = 'b6b97d8327027d6ebf6b635f35b27e94fdfe76a6c568958b0e92410d2dc97f81' 
  AND (
    token = 'Z4R+U3NTA95OBeLD6mfY+yHQgde+PN4dRhdteypW+Jc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )