{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xd3f0d01e8d4fbf9458283e143311ae24dbe322e158362c88ef97a3b191c1b8d9",
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    "signer": "0xB89F1CcEf1aC6470c3B2E93cC90eBC3359D18E87",
    "userId": "180380697"
  }
}