{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "800946396",
    "entityType": "User",
    "nonce": "0xf15d50ac8288f2dee0b5de19193f8b13d8bfe4b7497669053947631c065550ad",
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    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}