{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0xe8bb87a446fb6b3fd103e15ff056782fb071282ee3719889aafcabb5382b468e",
    "signature": "0x788ed69c375a3f36b9f57fbdc0146dc0ad5fa72a2ad809cb69cad7517bf33c1a2d43ec5075805f9a063f91e3cc417e3387b7a957266ba3217d57876b57794f121b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}