{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258220",
    "entityType": "User",
    "nonce": "0xed7ae3f64fac68072d4e8b92e3cd89c56c29a66ca6c0170e624aec0f5f126e52",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}