UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UNlP8XC/1jqED6Hl+UThuE75NK2wCq5avE8eT3iN6qg=' 
WHERE 
  key_id = 'e354114f51e6672e162d86567199e2800c8c2bbeacc3c4f166f492392a79403f' 
  AND (
    token = 'UNlP8XC/1jqED6Hl+UThuE75NK2wCq5avE8eT3iN6qg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )