{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370378",
    "entityType": "User",
    "nonce": "0xc21db8553a5ae37e9fa8fd6be9a9b5085e0658f75bdcd9532e6ec77d8ce14185",
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    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}