{
  "manageEntity": {
    "action": "Create",
    "entityId": "759127334",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":759127334,\"description\":\"\",\"playlist_name\":\"TRACK 1 (REF 1)\",\"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\":1775326336,\"metadata_timestamp\":1775326336,\"track_id\":763538219}]}}",
    "nonce": "0x1eda965c5411300c04e0105267d1344701554aead337c94e06da19bf3b992db4",
    "signature": "0xdb7fb136dec0562bf958d040dae20332f61a691c953e538d876071b6f9c5c04822e8f74689d36af2128f98d8e9268495f5584ae24724132d60e5746b977779061c",
    "signer": "0x04C504928B4945dAF4D6c8D84353Dc1ab5000C1F",
    "userId": "422886157"
  }
}