{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0xb85a897b8ac9af723bd90f9a3286447e7ab1e3c80fe0f0c524f0908f797ce921",
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    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}