{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1751312225",
    "entityType": "Track",
    "nonce": "0xf6c405e1122e3a95385d82cde8b21429e906eef16c1cec10e07e6f3982e9a3a2",
    "signature": "0x0b9d95d444864c814de60b2c672f42bf39da7a475f3f4eed20ba3492e19a5e42646fdd8b4ba6c097923124870af55fc908e96313906dba63a099335220f59de61b",
    "signer": "0xc350d890DCc6382B84906765c352e34689f1F38f",
    "userId": "326760792"
  }
}