{
  "manageEntity": {
    "action": "Create",
    "entityId": "444784029",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"cover_art_sizes\":\"baeaaaiqsedctpud2p57l4l7lpfjfpvrzhdztmcemxtqhbnq2nzrurpswmdh6u\",\"description\":\"The First Road\",\"duration\":281,\"genre\":\"Metal\",\"mood\":\"Other\",\"orig_file_cid\":\"baeaaaiqsedxcbi7ueu5zmjqie3ej2tg5jbczeyncpecwywe5y4tmbpb5arkue\",\"orig_filename\":\"02-the-first-road.mp3\",\"owner_id\":850116073,\"tags\":\"brevos,metal,rock,welted-woman\",\"title\":\"The First Road\",\"track_cid\":\"baeaaaiqseagl2ybtixnzc4yryuhbr2e4sp5gxz2xbxr2gnlduh2446t4zttdu\"}}",
    "nonce": "1792428735091416097",
    "signature": "0x60a7da9f7cf5f0ec613799104cb54c4b7b843882ff4a3f289156504906f4816442d7327838b1f2d0c1b326a59902f726163e0931e0fedf3d3e47b06c404389451b",
    "signer": "0x7d853670b15a2150BFfd80b516C26EEd400f695a",
    "userId": "850116073"
  }
}