{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "22571",
    "entityType": "User",
    "nonce": "0xbbc0f1668070b2c2585e41497b1b1b4ca4898597d8c328f4779a7bfb6adf4845",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}