{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1992287139",
    "entityType": "Track",
    "nonce": "0x6aac1518660a2414de8aaf2a737605b9615847c34bf8e1871ef62ffdc2250c97",
    "signature": "0xd990eba37f9b0001c5d869f4c2aaf8d3eb29b607b7973955b7fa1de4856d950a50a643831fa7ab0f9f20323b0595fe1fb9d381a80ceea6120dcdbed149c0c7a41b",
    "signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
    "userId": "354535"
  }
}