{
  "manageEntity": {
    "action": "Save",
    "entityId": "1942802103",
    "entityType": "Track",
    "nonce": "0x8afa94e12debf3b75ca5c486b1c3d5df77aafccc548dde1dde2e2c8bef08a80c",
    "signature": "0xa9390ab1de94d6aaad4387c8f56eadf205204f63ef303366c6dc89abd8d595c349f3a636bdf7dc22b54735958447c72b39469db9c85fa539c988b7de41004a791b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}