{
  "manageEntity": {
    "action": "Download",
    "entityId": "686493600",
    "entityType": "Track",
    "nonce": "0x857739272c8c66eb81c68b8f1d2037931d25ce395ec5e039a1bc091e395ad4bf",
    "signature": "0x392a870498e729508d7e9ddc529395f80a47a11ca1b8225c8f87b36a84a9d19e749852f044961dcf2b647b7fb7cbe0c138e4d3b2332ba908c25824f4a263679b1b",
    "signer": "0x42e695462662E8EB1FE25c8064B83E233d0b100B",
    "userId": "586354841"
  }
}