{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "2109783904",
    "entityType": "Track",
    "nonce": "0x111e7665daf9fd00a8089d445868e7454ef76559baae6bd787e776cf4996d2e6",
    "signature": "0x27a4523530ba6e43f7b51d1778a42e97e8ea062040fee86b5b0fa291b6cd64765164fa46447f849e1d39395c6dd61916f8d00f83b818a9c69643569b02b17b361b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}