{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "244403176",
    "entityType": "User",
    "nonce": "0x4c395829bf878bb6fadb7ffc356bc34dbe0a9ac938a4472cde90a871a7c9452c",
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    "signer": "0xB18b1793545F350C53589f5BA9BfA143b7F15eE5",
    "userId": "417591612"
  }
}