{
  "manageEntity": {
    "action": "Save",
    "entityId": "1096105",
    "entityType": "Track",
    "nonce": "0xe3d86585df824aebe0b02bce1619f35f7563e5ea18ee7ffe81e6733bad1452e4",
    "signature": "0x1d1b176c02c723ec11e10d59ebf11f491bd5209ddf33c0d6e13128bb67e327fd6357cf4056295e892d84385e1940a1ba4ff8713a3ef140b672f5fdb943c995b01b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}