UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xTWytv50RsynlzMOMg9oyRGsLle68cQIBKNflr02FcY=' 
WHERE 
  key_id = 'ef2d573f9ef97feebc29f49a5e1a6fdb4081c2d3eda5b95809e98f4f9dd87288' 
  AND (
    token = 'xTWytv50RsynlzMOMg9oyRGsLle68cQIBKNflr02FcY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )