{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1681859107",
    "entityType": "Track",
    "nonce": "0x2d95974b9f340c1f3bf5c3c629a7d2d1044ef698e12904eb27952657c7ff2ff6",
    "signature": "0xf7d1e0d3bc6f7d4ebfc5c949646381eb397fcb80e2562ea6c28934967293e6a956882d5a2b31bbe5895f2993afda7724f66faa9f648253e6d4c8ef103eb0ce0e1b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}