{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194914",
    "entityType": "User",
    "nonce": "0x6f8569d614496156cb1ce30bb1dce6576a8ac6487a2b887a8e2a0a7de08038d9",
    "signature": "0xb1d66c51ec899b08f44279f478707d081ca8599bdee898dcf004864b62995f1600c4ab7909e76777ee454c065f611af17a9999e451f70e14ea46639d4b4741911c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}