{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1359765206",
    "entityType": "Track",
    "nonce": "0x32e958d93483846c435396c23377ad0780fc16b35a66d6acf240202d18125ddc",
    "signature": "0xbc07990376f3c448fe9d7fe0171b958785d55c362bafc02aa6f4cc9a428a28d62789639ea5395160306fa667c56e9854d52fcdd3ed7fb9da1c965367224298851c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}