UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U2UIUwyefABB5n3jQOocTjKuJK/FnLhUdqBjg3sMaFk=' 
WHERE 
  key_id = 'ffc7ad2b111722e96bb33e04cea7431a974de0686403d3224a68812532034d18' 
  AND (
    token = 'U2UIUwyefABB5n3jQOocTjKuJK/FnLhUdqBjg3sMaFk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )