{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1111456868",
    "entityType": "Track",
    "nonce": "0x8b66c4c7b42dfa53c43a1927c516d04407b3cf6ee14bd004f9f338b8ab3bf3b0",
    "signature": "0xc45c5474f156b04db77aa67aebfe15225165f7a2b9fa9b960fd94b4536d4b42377ffd1c16fcf9deac11965314b153abe1654a28a2a5b7dd9acfe74b5b3831e811c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}