{
  "manageEntity": {
    "action": "Save",
    "entityId": "236596349",
    "entityType": "Track",
    "nonce": "0x3c7bbb0dfd5217c44dc21dbf1e82616091386c89c866278687ae773fadc2b3d3",
    "signature": "0x740001881e5cf59882d21f0898f1537b9914a8dd8773bc777d225d791ce9dcd076751f17e6d19a6d242885ad33897ed96792f7136ba355f9d6e85d3837e92b731b",
    "signer": "0x5d8091c5439F52184dFD827f33FF815dCc827bA8",
    "userId": "52403052"
  }
}