{
  "manageEntity": {
    "action": "Save",
    "entityId": "65260",
    "entityType": "Track",
    "nonce": "0xe664082cfbda4fb78301a4130548b898161e55ff6e7073a6bcf294e1be4305cc",
    "signature": "0x77834002b0660cc5c728a84f9b0748a41df037d28cd246e361067d04ab0d435e24744a2c51005cb6082e8f21b24d771d32de06f654d1c8f3a859b9fc6b1e26721b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}