{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393259142",
    "entityType": "User",
    "nonce": "0x996529defe88bd05d30213cdd882ec1476ae0b3eff2d4fa443999341400209ef",
    "signature": "0x9c31c605579e215316bc88a8f73abad3232f8285878dc2de26eda302d110cfdc29658d2ecd03209665779c2e28bb9e4cdc56412d86268a1e4bc3d0b750d2a9111c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}