UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SRYDtl/DXrOO2eWUgjpnJvbX/9XWKm4bSyMskiDGh40=' 
WHERE 
  key_id = '51af8bc7232b84bc03fa6a9b3742276bf2b0bc5044b77f96c7642e04e7b21b99' 
  AND (
    token = 'SRYDtl/DXrOO2eWUgjpnJvbX/9XWKm4bSyMskiDGh40=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )