{
  "manageEntity": {
    "action": "Download",
    "entityId": "862677257",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Mandalay\",\"region\":\"Mandalay Region\",\"country\":\"Myanmar\"}}",
    "nonce": "0x2cd86a51df44936e3b83db5d72db54764bc4bcfac5fc7cd556cb5d4a6119a82f",
    "signature": "0x8d6e517e7e0f9a7eef65594091df11b6739bb1eed7bb592aa494e16d550dfef776da154a4ca5aeb50fce73f4c7d139adf6fdfaf500b69410ba3626b312275a0c1c",
    "signer": "0xFEa2c41d314209186e519b7539c0FcBDa1F9f00C",
    "userId": "51657002"
  }
}