{
  "manageEntity": {
    "action": "Save",
    "entityId": "216065332",
    "entityType": "Track",
    "nonce": "0x12c5a727bd0210aeb893157117c9652b0def522035f2f66c17e9a5648a0d2cc6",
    "signature": "0xea6b64a5844b8e1e793a86d3b1db4bacaad8f44b90ac85bf2da5c53b31f7f8110202ff227a52da873bcda06dc522e9a117f5cb9db3711c86412ddaedfb8db65b1b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}