{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xa8fafcc2c99c8728ddc96818fc0299ed787020a3e6fd5250ab1695947bebc73d",
    "signature": "0x57015219731db11500fab5c308208111c2d9b0cf5b6cbb2ee4f99fbc70761d9c648599c462558d822a5b97f26cb839f7b53ec1de08b39abaf8c888bae7d2dbb81c",
    "signer": "0x5328FC1DB0b76442c781ee3d38911662B174Fbe8",
    "userId": "95977"
  }
}