{
  "manageEntity": {
    "action": "Save",
    "entityId": "1271170639",
    "entityType": "Track",
    "nonce": "0x17a82eb382dbb695f8f9db244027a24d9b7f60a28f90ddad85c79f1e751c02fd",
    "signature": "0x7465383d8e087c52e28c0cd340c92bc952bae6ad28a321f76f22bb7c44f256495e929c6d5a059c847ce62a434360e5d5fa829dee851f15b4bc756395ab2f7eb01b",
    "signer": "0x85D7989dfD9D413A720848AdED0Db82fa10EE3A6",
    "userId": "170120659"
  }
}