{
  "manageEntity": {
    "action": "Create",
    "entityId": "405781594",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":405781594,\"description\":\"\",\"playlist_name\":\"Oopart B2\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":1775237424,\"metadata_timestamp\":1775237424,\"track_id\":576137}]}}",
    "nonce": "0xd03dca3cb6dd7c08c35fe8626cf3f106a3a5043912471aee2c8c7e8fe621107c",
    "signature": "0x1b518b2f5f83ff04adbbb83447e0cce475c558d9df9a31cf2bcb4b0be7d843575e9ec955793b3684dd8dca1f2b75a559bf862c1c4e7012cfaf1e28784a78962a1b",
    "signer": "0xb99C26747D29b7F4376FAc35C8462179e32e43af",
    "userId": "391851422"
  }
}