{
  "manageEntity": {
    "action": "Save",
    "entityId": "1311346656",
    "entityType": "Track",
    "nonce": "0xed2049ad9897ed4318430920e62024eebbd610b483de69dfec64c37f9899f046",
    "signature": "0xaa406bbb624712edd58979074a272d7b2a9681c429ffef6c0f86c1e7f6974eea449c12e133d35461bce9d5ee75bc4ea59d660867b0a129b3e90438f2fde6d2e61c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}