{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "766729865",
    "entityType": "Track",
    "nonce": "0x4614e415f822f8fa33ca8b6ef46bbc46954b043375c281eaed46b1d9cd5107a7",
    "signature": "0x31dc94c560ffd1ba2ac8c117eb0c02625d8443074afb7d3bceb543743decab150311e98f142122a779c9619e6325fc365adedd9fd365cb623471d61f1c9967681b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}