{
  "manageEntity": {
    "action": "Save",
    "entityId": "735372135",
    "entityType": "Track",
    "nonce": "0xae35898caa4336365861b0ccdcc24d9cc22c3fd7e7f6d37194768ddac2946bd4",
    "signature": "0xc03a7bc08e48495439c6ae63b98142ea04e6e825619c0ce637ea4eb0b4b4010b622a5410fcaf07bf2d6fad957b00f838526ab726848079e38fcef07af92906a61c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}