{
  "manageEntity": {
    "action": "Create",
    "entityId": "853374075",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":853374075,\"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,\"mood\":\"Other\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Cruising I-25\",\"duration\":146,\"audio_upload_id\":\"01KMRQYPCYV4YSBY6YC0WFFMKP\",\"track_cid\":\"baeaaaiqsead6l2g6mxof76w2rm6b5srmyeeuzqacy26tjaorykochfityayce\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseduckv7ld2uhzccsbzo2irx3zask54pa73wyncp3qg346cci7s4tm\",\"orig_filename\":\"Cruising I-25.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":83,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":831117417,\"track_segments\":[],\"cover_art_sizes\":\"01KMRQYNW9ND0Q9VJA84PDCW8P\",\"audio_analysis_error_count\":0}}",
    "nonce": "0x24c0348602dbae9248951444a332fa37929ddb2901e67e7aed0a6eda7f0f7cd2",
    "signature": "0x925083baf7113b042b0848131e161fe00c2330af32fa4b85e01ee36080e910ef0e5aa8ac51b3cc82a18e86bf393742c15d7a7ce6012696f45b6074f27af2a4071c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}