{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x76720e82c1d31bb256bce80c9df7cf63a6986dfe23a573b628fed7b0c35a5ea8",
    "signature": "0x20dd3a3f83d46ceddbe765b6b228799fa61509fc685461111127fbbf135a2fea16541bc99cb780ba8619f5df7f100742eb75336bf440a8788281829f7040f91b1b",
    "signer": "0xC9b9f4Dac097137f37142eBF706e28d33C9e03Ac",
    "userId": "440148906"
  }
}