UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R4+jvuuPmLzWqnlAPjEKRcWTxCUV1PjDmaCefoeOIpk=' 
WHERE 
  key_id = '6c6c114f257a1b818118eacd4891c387c8c43d9a884f09502d27086d1a405fd3' 
  AND (
    token = 'R4+jvuuPmLzWqnlAPjEKRcWTxCUV1PjDmaCefoeOIpk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )