{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494564988",
    "entityType": "User",
    "nonce": "0x811a944ab49d654908294dd1afd3b7a1cbe2ff04f17f00d10ea04a161b12a03a",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}