{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "158634613",
    "entityType": "Track",
    "nonce": "0xc16499011575422044f40d7a2feb9f36a17787ba7ac6eca5cf5eb750f352f01e",
    "signature": "0x6a2698b4ea8f3c11b353b37938805eb7c38249a6e92dc3e211bc8cd7614aeffb4db394e5e8d2a2a63f068ac7fb9ba01b936883abdf0bc12cdd77b3981f8f9fbe1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}