{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x8ce4ed095e73c2d57a19c7c9e754d2296bea692cf0863cac3f27a4fd2108d523",
    "signature": "0xf6c5c1085e2a5c15dbcdbedf57235e027d92ecc1b9d56a1f21de8abf99a17ca76d0d8ff1a011df187c67578ed710b77bf55d653e2b421a01a5fd9fb5b751d6ed1b",
    "signer": "0xAB6eE70d56A93cDF21a1ac81F2649F219A82e3c9",
    "userId": "985546444"
  }
}