{
  "manageEntity": {
    "action": "Create",
    "entityId": "521876117",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"cover_art_sizes\":\"baeaaaiqsebznxrrhzpolwydpcp5ogsztdz7dpwczpp5qmbsss7bd6egvzak6a\",\"duration\":160,\"genre\":\"Electronic\",\"orig_file_cid\":\"baeaaaiqseasxy6iy5hgirx7ifn5maje2nhjgrapg5k7465yaor2x32ntlnz44\",\"orig_filename\":\"Like love \\u0026 more v9.wav\",\"owner_id\":509651367,\"preview_cid\":\"baeaaaiqsecxh3skoqmbdzjzxbprbhq77wj4ugmvlwtrvimdhwyir25ofjndne\",\"title\":\"Like Love \\u0026 More [No Copyright Sounds]\",\"track_cid\":\"baeaaaiqsecf6jof3qsoo2sgbcvghch5o3kq3mop3cdp2hapjno4vfyuohzeyu\"}}",
    "nonce": "1787418925658084758",
    "signature": "0x7779c5df06b3dfcc6aa5db83d16d98c2f3829384a0b6529f445f95dbc90db6ed274e7d68c7933553757b4cb510a849b59fa72b82b7d6b05a5b8cc3b9c00dbbc41c",
    "signer": "0x8CB448A729Eca339BC72280C850c5479f5Cb0AB5",
    "userId": "509651367"
  }
}