{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xcf1376c7e9873b4a85e2c90e3b0e2eea1dfc8618346a609aa3dcc2746c954ed0",
    "signature": "0xf717fc54b7085722c8ca13c6230e6322f1d0b8c35b337ce044e7780226cf39f5355878e0fa24b5bd0c5215301dd231884c45751f36b87da3faeb3794058706951b",
    "signer": "0x893f27cC599C8EF276aD52F8Cd0F780883C6e827",
    "userId": "590068580"
  }
}