{
  "manageEntity": {
    "action": "Save",
    "entityId": "1036878862",
    "entityType": "Track",
    "nonce": "0xb20e7163e2cc30f394a01e8665be9774230575444fe2c368f425e8ad046f4420",
    "signature": "0xb5e77c1fab501834b60a8b780d1c33d6a8e8678976b20ee0856b4fcffd7f10d8708ab3c0332348b319fdfe870d325d7f04fb39df49d967a5566a80329cc329f41b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}