{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99645",
    "entityType": "User",
    "nonce": "0xaae7a75b6a7409f72996d5ca61a160182053a7e071a84d33b813b1429e42e338",
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    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}