{
  "manageEntity": {
    "action": "Save",
    "entityId": "794779032",
    "entityType": "Track",
    "nonce": "0x9e40faca4dbc4f94b0ade73cee750f13ff345800fae96dcc4aa34ec11fbbb503",
    "signature": "0x1fa1129fd6c723495c660996948d99b4d77089b52d4fbbd2afd8f73f1fec237f353bceb61f479037d070df23f01fa4b77cafd4da77a316806d0db49ecbda90741b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}