{
  "manageEntity": {
    "action": "Create",
    "entityId": "288547538",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"cover_art_sizes\":\"baeaaaiqsecec64ednuenov6v55rziupxss442u2ov26sxsnxyaagfotah2gsk\",\"description\":\"Kind Cynic - Thin Mercy\",\"duration\":180,\"genre\":\"Rock\",\"mood\":\"Tender\",\"orig_file_cid\":\"baeaaaiqsealtfy7adfulgqwegbitpobpjfbxrtupx5rmggpe4bfbk6nobsmkc\",\"orig_filename\":\"05-kind-cynic-thin-mercy.mp3\",\"owner_id\":850116073,\"tags\":\"ballad,brevos,kind-cynic,piano\",\"title\":\"Kind Cynic - Thin Mercy\",\"track_cid\":\"baeaaaiqsea7ndqfsvok6trr7rpggoo4meppjsedhg44nmfudhpsjasyyedf5g\"}}",
    "nonce": "1792428827639268486",
    "signature": "0x2627f1e8dae2e5d67a69f97d95e5af8003b3d9faf71d095efb0708b1a87d7dd858c1f391c1ac53ff39d24c8dd6884fc582f15b0142696d8584141946c71d06f11c",
    "signer": "0x7d853670b15a2150BFfd80b516C26EEd400f695a",
    "userId": "850116073"
  }
}