{
  "manageEntity": {
    "action": "Create",
    "entityId": "940756411",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":940756411,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Experimental\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"I am which\",\"duration\":197,\"audio_upload_id\":\"c9b641a3b78c0c1741d37beda24cb615\",\"track_cid\":\"baeaaaiqsebkfdgmgfzqxhxhkyvzzper7yxldfgmhrwmedqt73k3dze5rystwa\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebo6wod4yytiwbxp7nsm27dyaycs3zggebekbpyvpb2qfamemlas2\",\"orig_filename\":\"I am which.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":137,\"is_custom_bpm\":false,\"musical_key\":\"D major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":51978829,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedizhvqrzylfmexbfvctz63cwhb2h4twuc7qjsrw7bd3rxrmqmrge\"}}",
    "nonce": "0xcb0e170296c7f8472e4668b985fb1923aaa66dc3f6b10b9afec8fbbac2872ac0",
    "signature": "0x17ad7255007eef814eb810f2d28a94fd64a143016986bfc501d674a58ea1f14f02b4d5f6503fa72ca4c56775701eab1e455bfd0037cd0c7eaf5837d7cff80f571b",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}