{
  "manageEntity": {
    "action": "Save",
    "entityId": "1763245153",
    "entityType": "Track",
    "nonce": "0x38ba94c7be934d8bfc5b8c1da62aecadc3784876284f7aa56580f72cca447c05",
    "signature": "0xc948dc08e683a21ebe2fefe790b753e2743a0be0bbf36dbddc6b31c25937d15676ab23c494235f094a87702ba14487809cfd342de66c7090f14ae8e1eaab8d901b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}