{
  "manageEntity": {
    "action": "Download",
    "entityId": "128969",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Mandalay\",\"region\":\"Mandalay Region\",\"country\":\"Myanmar\"}}",
    "nonce": "0x7453d26d97bf8175b98f053b342a54eabbd7b106e0974795080fa12232c83ddc",
    "signature": "0xeada28617601d2dc858075969e981b057a3158ff5f95430a3b907713913a0a62784bce4520dabd8cfb1d738606744246a401cf916fb0ae95b4e47ac06d55d39d1b",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}