UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MS9dDzdRL3N79wNfmYIgkO7vPcPUYGglaYMKY0Ftx1k=' 
WHERE 
  key_id = '6b6449dec051403ee648c103abd8d94898441b969a39529b88a0cd231b53dc7a' 
  AND (
    token = 'MS9dDzdRL3N79wNfmYIgkO7vPcPUYGglaYMKY0Ftx1k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )