{
  "manageEntity": {
    "action": "Download",
    "entityId": "1998734414",
    "entityType": "Track",
    "nonce": "0x9419065e06b6debb0f84b4d2c0b19bd3fa0f15c71ebe3a1eec906691bcd9a033",
    "signature": "0xc5a3bce983e2a0857bed7b3b96eeb03cb327b2d1dccc6df23d660d8c0e836b8553c8dc265d2dc4d4947c1857468cff2b69fae5ad70a7a014336bd0cf2661c62a1c",
    "signer": "0x6d5F0ab3834a969A58d2cd4961d64d0E609D0ecA",
    "userId": "219883"
  }
}