{
  "manageEntity": {
    "action": "Save",
    "entityId": "1086914",
    "entityType": "Track",
    "nonce": "0x00e313d8b1a9c39b902fcf232a9ba8c3cc782514a25fb50a47e2053d87ff460a",
    "signature": "0xb7d4ff73a68f0f66708f889870b1c36f373071001f48a90d8a04e21b3514ef6465ece5f7e577a0f989fd5bb6c4f39c84b6b8785783ac9f7f32d31283b3e4bec31b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}