{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48804",
    "entityType": "User",
    "nonce": "0xae718c0805a2b098ec40b71ceb7a8003617d3b05024cb1586eaa65f131d86b5f",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}