UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zG5I2h2ATdj4wb4YMfUvS1QKQd3LuFRca8N97AYv64Y=' 
WHERE 
  key_id = '21a958c6883a0bc3a6885775c492f5a12e669e7a6916bb660f44b880d8a1e74a' 
  AND (
    token = 'zG5I2h2ATdj4wb4YMfUvS1QKQd3LuFRca8N97AYv64Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )