{
  "manageEntity": {
    "action": "Save",
    "entityId": "2096338024",
    "entityType": "Track",
    "nonce": "0x915ee81dc3d9a05f355cd6572152b95314675acf1bf99e2405a2ca8eb7fbec62",
    "signature": "0xd5d62f0672a589adb1687f16ab3af3c5556ef620efac86a5d48565b9279002e16265ddc62bac11b947f53d79f6a6ac7dfc36f63420da33de9f4f6d9b314abbcb1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}