test MP4

Metadata:

{
  "name": "test MP4",
  "files": [
    {
      "src": "ipfs://QmUrRjYcDHPSbQDXTW1UNKyVJLTjZSEMXze7dadPNkE13U",
      "name": "Thumbnail",
      "mediaType": "video/mp4"
    }
  ],
  "image": "ipfs://QmSX71dytVKT9iotHT3vRrHnGeok51txCSar3VxUqihV2G",
  "mediaType": "image/webp",
  "description": ""
}