{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "69146173",
    "entityType": "Track",
    "nonce": "0x83cbf229dfa9f0a348072a4d65f228d60a7fe327a25c4b56c4d56202c39c9d8b",
    "signature": "0xb597f681fe94943e4c1bb5cd7894a91ea54668b11b449479a9e0b1db7012f7c75396ea10b2914c71575dd88966d5c50bf76a0db514b781cf33e03670ffe3f8f51b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}