{
  "manageEntity": {
    "action": "Save",
    "entityId": "1126511289",
    "entityType": "Track",
    "nonce": "0x0034a5ccebf6eaa4ccbd744c14f8ce9b1aca58024754b546ddf08f51d8b726ac",
    "signature": "0x1f24763687736c4cc4da280f5030cad8d3b8663e93e0ea060135da01755e014f4c4186d95ce4232bee382ff0f736ab746f54a649f6519e79cb0306536b828d481b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}