{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1485744458",
    "entityType": "Track",
    "nonce": "0x7e1be542e92598d54ea5a66122b81a626980cf63b1af7e26cf0a207d04d6ac12",
    "signature": "0xc507346b8b9f75314f096e87534e0b64f499a1b9c5f3d8c15f7791fdb0119b0032d9c51e5d160ce48a4622fc5f5f45ce53301b25b7f766a4704c9e061f2a0cb61c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}