{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "819578939",
    "entityType": "User",
    "nonce": "0xa8b21768d1b5c82155bb661398de5f5a8c24f8888e169fd4e2b42d5fa0300d6c",
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    "signer": "0xCb7Aa833f2E005981510243B801a59e2845966ec",
    "userId": "129166385"
  }
}