{
  "manageEntity": {
    "action": "Create",
    "entityId": "415682329",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":415682329,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Trance\",\"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\":\"test7\",\"duration\":397,\"audio_upload_id\":\"c7dfb1cea391f39b216e729c723c493e\",\"track_cid\":\"baeaaaiqsealtybva7dkj7wyhp6boo3fb6h76f3jvagmcakfivgsp5en6xbkfq\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsea4xrrr7wpay442kxvqguu4b56erppif65htcbyhfi3flun5kp4j4\",\"orig_filename\":\"test.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":145,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":5016987,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedbqjl6tsy3gz35xe5fkjq3vyof2em7amgjgdxjn3zfldaiabmcxw\"}}",
    "nonce": "0xd304fd5ae8f0b90609e4c530ef18bdd2cdbd59e79af9b4ac64b848edb37a7e0d",
    "signature": "0x5a93ad638e63969f635d2eb49f9ea520d6d84d439f8020d4d77d21e24b96ca1e504ee4795e9e5dda88ca999414db69ecafb7d1a6a9390b9f1005a29ad00b69531c",
    "signer": "0xDd0b1E1Ac36008d2Eb670bdf27d60DE0330B298b",
    "userId": "5016987"
  }
}