{
  "manageEntity": {
    "action": "Save",
    "entityId": "114696",
    "entityType": "Track",
    "nonce": "0x6932923bdbf9338f5041c999a5fab8fee698b9edf2d86e89fc6c7c3ee9986ca3",
    "signature": "0x45aa3969fd6c7569ae49c29f42130bb0ba20a92b1c851d8f773449c3bb39c13f38eb1d5e807a405f3501057ec183b8ae8e72f3e7df968fdfe3d86f9362382ed01b",
    "signer": "0xAaC77705f5f6bd787D8581c36Ddaf7c0c7AE3370",
    "userId": "827420993"
  }
}