{
  "manageEntity": {
    "action": "Save",
    "entityId": "1008071",
    "entityType": "Track",
    "nonce": "0xa77714d3751f05c0e7262502a0303ba5373bbd01d69147d436559c32a6a3d8fe",
    "signature": "0xb7d16297898ca31b41c056d591da8b4a8d109abed6e9e2036f777294f59b447d7a68f88af6d955c850d45db21d9a8809dc86c878fd0fe93108b065e6424324ea1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}