{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1858648200",
    "entityType": "Track",
    "nonce": "0x45b20a84bc0475d75279499dd3df6e57ee3a91f90de4395c6486637476a1e05a",
    "signature": "0x5f26c53951bde74040f8ce19ce91245f5610f5c49023f875c6d73798c6e461ee2edd71d05c922f4ce26a656d809f7ba973bf7afa8215842c817d78707b9b223d1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}