{
  "manageEntity": {
    "action": "Save",
    "entityId": "2098496098",
    "entityType": "Track",
    "nonce": "0x014c66f625cf86693c12e27650b6827663f4618d6a88309544fe42075df97cdd",
    "signature": "0x04194e95778b85c1c6a8f594e15783f4e29772dbc70a79d971ffcd1e3e12f3e877822e76529f5e9ed6195495a6630ca14543eae1851bfe0318001bb3c08987be1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}