{
  "manageEntity": {
    "action": "Update",
    "entityId": "1270161678",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"Test\",\"playlist_name\":\"Test\",\"is_private\":false,\"license\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"playlist_contents\":[{\"timestamp\":1780262174,\"track_id\":306888232}],\"is_stream_gated\":false,\"stream_conditions\":null,\"is_scheduled_release\":false}}",
    "nonce": "0x386484b6e9a5cd783c2b9d2df884c6d3d0faa48f63915e7ee5cd28148e4dadd5",
    "signature": "0xc1f4b86b2ed63cd23c743a00c184d3a5af458ab8252de8795018d142103ac45f2109ed500a5add7565eefd7979f498cf1838bbba3834733e7038873e1ab8365b1b",
    "signer": "0xCaE1ee7dc4DB493ceab857fd89C09fA305C4c5d4",
    "userId": "648743045"
  }
}