{
  "manageEntity": {
    "action": "Save",
    "entityId": "1014116840",
    "entityType": "Track",
    "nonce": "0xfdf82a218b860535875a1d02c652eb3093c9ddd4508d7b6eb1f47bf1c0d1d93b",
    "signature": "0x81668ec0a4dea4cf74a5fd67bdc6f65d720a39f4c2fcf8d0396f300c1d3ddeed18b439141725472e0ecec86177b0f64ced36882068d62609e9661a3519d601541c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}