{
  "manageEntity": {
    "action": "Create",
    "entityId": "798004182",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"A smooth, jazzy piano-led song with a laid-back flow, focusing on the quiet moments of reflection and solitude.\",\"genre\":\"Hip-Hop/Rap\",\"license\":\"All rights reserved\",\"mood\":\"Easygoing\",\"tags\":\"hip_hop, rap\",\"title\":\"Rain on Glass\",\"owner_id\":664332149,\"field_visibility\":{\"genre\":true,\"mood\":true,\"tags\":true,\"share\":true,\"play_count\":true},\"track_segments\":[],\"track_cid\":\"baeaaaiqseaityft5c3djfke426i6hyamkhipiuqvjohbzr243fmnexyr54tqo\",\"orig_file_cid\":\"baeaaaiqseaih6ijcashptg4e7pndcnzj2mxr5kbwcvj3ln7ltawqqcacyx7rg\",\"orig_filename\":\"04_Rain_on_Glass.flac\",\"audio_upload_id\":\"01M1R3VBA4DAGY9PBEKA67A02V\",\"cover_art_sizes\":\"01M1R3TMX6VJXWWWT6JGA0QRAF\",\"duration\":193,\"bpm\":88,\"musical_key\":\"F minor\",\"audio_analysis_error_count\":0}}",
    "nonce": "0xe8bb7fca0c8d7350806b5392f590995749d6b63158af9d49ab1847f4737a6238",
    "signature": "0xee9f19909777872d35d607a02ee300f7779e3479567635f90d37079fb8be25227a6611040a94d826039ee2b0d57b1ea7e4aefe05f482b498c0b0040af82c5ecc1b",
    "signer": "0xbbf7361D2CF4d27ac3b308b6E5929458C0E9Fd45",
    "userId": "664332149"
  }
}