{
  "manageEntity": {
    "action": "Create",
    "entityId": "1975974717",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1975974717,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Noise\",\"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\":\"9111243\",\"duration\":591,\"audio_upload_id\":\"34e4e11809eb9662a0d834b373b9c062\",\"track_cid\":\"baeaaaiqsedkrn463oww5ajy7a74nxpwhsfjnpity6sshzuu43m3olyl3jxzb2\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedx63ngg7oqkitydpl3ms2d4vkcc4fv4ppnyxjofuptr33wvcdgbi\",\"orig_filename\":\"9111243.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":121,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":899968232,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecixw3bghd5z65spj36yw2hsybzjw37xkmho4wpequ6w6a3lpgyoy\"}}",
    "nonce": "0x2345ece9ab2e2f11f8a04d0a6c885b7829de80990a11f46f64402b6bfd8d4887",
    "signature": "0x1e8562666484d067b3f472d4acbd9dc2a84193841e2fcc4aa999acb6662861a743a3fbacc4da5742270fcc101dab074a3083e92ac081f84a757afd1040d1e7ed1b",
    "signer": "0x861a92c3644F5AeE523a1B31F3232d18516aeBa9",
    "userId": "899968232"
  }
}