{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x8bb9da4d09294f385d6f18a6fe402fdd6dce903e9acfc1ffd5eb876f9a65ba63",
    "signature": "0xe46c65636f8aa369251bfb1ad1105ddda2951bb74822a5a916559bd79d1015c97225b2b42f61a406ce910991022c7ed21b50fab083f16c160333b97579c3507d1b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}