{
  "manageEntity": {
    "action": "Create",
    "entityId": "1381585353",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1381585353,\"description\":\"\",\"playlist_name\":\"circles\",\"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\":1781630277,\"metadata_timestamp\":1781630277,\"track_id\":574262830}]}}",
    "nonce": "0xe3ff5df25ac458d0a6e7cea65e4e354a47c61f74022fefe7c208c88de1a67d49",
    "signature": "0x64330037c1481b29e2b76c2cb5ef5608e0220e9e2d4c2d3ffa2a2cd2dd4f60cf093cdd4699f31afdb44e01fd30f1a0617a09c5b2f1f8752b87923435b2f8710e1b",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
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}