{
  "manageEntity": {
    "action": "Create",
    "entityId": "67541770",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"cover_art_sizes\":\"baeaaaiqsect7giicdrs5hlewab5wn36ewfgiqezi7s23yijbh75fgm7yyfpok\",\"duration\":165,\"genre\":\"Electronic\",\"orig_file_cid\":\"baeaaaiqsebnj7gnslv5ynn4phr44ya6d4mwsfbnntkbjoyxo2to7a3laoqohy\",\"orig_filename\":\"01 - Deep pain.wav\",\"owner_id\":509651367,\"preview_cid\":\"baeaaaiqseaoaic725sx4tys3gqcl4binl2zetv3puobczcudphpdiht6qrfgk\",\"title\":\"Deep Pain\",\"track_cid\":\"baeaaaiqsed6zv57q6n6llk34dztn4u7jcq3wt6izwciwnrvds3nwxl7poebba\"}}",
    "nonce": "1787418882660575823",
    "signature": "0x511afc410ac8243ee22944a4b20b7ffdd2b9ea9af0ad965f4e883b7b56be45cc528ac7b604f0d37964d286926caf0f168d28a5879d868bb732c71227b0e117021c",
    "signer": "0x8CB448A729Eca339BC72280C850c5479f5Cb0AB5",
    "userId": "509651367"
  }
}