{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1734625638",
    "entityType": "Track",
    "nonce": "0x7b7bcbcd3f20bff1cd14a725e95a26ee4dbfc1be476247e365e023b5994d47bd",
    "signature": "0xe9a0d125b214ff327d5566e71dbe8f127c7e1a30d4a4a0bfb95f159529a0f4a16b105491e1836546650da74473c76ab40d141578a85d5ad4b8c1280dc3631ca31c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}