{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "75351",
    "entityType": "User",
    "nonce": "0xc5fffa4bd87f076c44ea2de97a52f69844d47cfe0223580d4deb9d21eb7538f5",
    "signature": "0x2055521df824fba92ccca7edcb33335c2173c2f20e18a246f2f5644e46e1a0a1209f5e5abb353ed31498c811f8671f9ee84300a908ee79d98d1d29e21cf6ed911c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}