{
  "manageEntity": {
    "action": "Create",
    "entityId": "378432721",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":378432721,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Ambient\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Ритуал-84 - Купальский фрагмент\",\"duration\":155,\"audio_upload_id\":\"5903b9ccb7952e9ab5f68f431e30bf37\",\"track_cid\":\"baeaaaiqsecagmgw3tivxurkn3ky2oys6iog3rp56lo4ovm7ebfn2o44g2u4ie\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedjgo2oyqww4tbicsecuur6eisyfwlt6qhe5uu724auanqej6dz3m\",\"orig_filename\":\"Ритуал-84 - Купальский фрагмент.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":149,\"is_custom_bpm\":false,\"musical_key\":\"F minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":672133271,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebual33ksryfd6cecbxphowo2pa32irkdckvmakjnsjmqtgjzigag\"}}",
    "nonce": "0x66c3aa2055470e0b256b6b35ccc9b2d5191362b23cc4eb480bd2622a799fd520",
    "signature": "0x98894f7aded99034f6da9660d8001bf74daf3978c4bda73099934f411e1504b8483d002ae41c40d6b6af5cc15f75237d565c34d09b0927e7b145fc4a8438b2641c",
    "signer": "0x9DdE377c723409FF26023CF1B05dDc885a25BfbD",
    "userId": "672133271"
  }
}