{
  "manageEntity": {
    "action": "Create",
    "entityId": "722988573",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":722988573,\"description\":\"\",\"playlist_name\":\"leaveamsg\",\"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\":1779456677,\"metadata_timestamp\":1779456677,\"track_id\":766245612}]}}",
    "nonce": "0x351c7a37534a2eef96d6674b5a4b868c3ba847383a636415d864e757fad078f6",
    "signature": "0xc31d50575a43c2757546d636672c002732eee72ea8a2587e42c5101b46c5f5874ccb539bb93688572458277daed152140c87a73c1fa0c9aa17de356132560dae1b",
    "signer": "0x7df9000193ae455e1936357F695111eEC59995b5",
    "userId": "116978111"
  }
}