{
  "manageEntity": {
    "action": "Save",
    "entityId": "31651861",
    "entityType": "Track",
    "nonce": "0x6a74f47ff830e0f44467802854a3ef90389461bfb063742b418b6d2fe7c12e7f",
    "signature": "0xeed248086ff662a3d01268684090e657815c82424ac1cce4283c1348e095c09717170362dad5886cf6572363167d86eb0a4ecde593251355b18fdcb8451a5f7f1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}