{
  "manageEntity": {
    "action": "Create",
    "entityId": "1566518463",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"The Obsidian Shade\",\"duration\":298,\"genre\":\"Metal\",\"mood\":\"Brooding\",\"orig_file_cid\":\"baeaaaiqsead7m76zafmm46wmgu5jprtqqciew2ictdc5wqabfwdrd2jhtsbja\",\"orig_filename\":\"13-the-obsidian-shade.mp3\",\"owner_id\":850116073,\"tags\":\"brevos,dragon-slayer,metal,post-rock,rock\",\"title\":\"The Obsidian Shade\",\"track_cid\":\"baeaaaiqsecj7quc3fijm5tv34i2ewzdhspadqppae4xwc5bidaiuqdcpybgls\"}}",
    "nonce": "1792421903403510005",
    "signature": "0x229283a0616c1370bdb198c838c3c2e0c8fab39140a5a903710aeac52fdd329106673a45e2f0676f5f380e4c2a7723fa371bd75f7d97d077ead0df9baf449d4e1b",
    "signer": "0x7d853670b15a2150BFfd80b516C26EEd400f695a",
    "userId": "850116073"
  }
}