{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xeab02c00622bf550d1f95ecf90f50332e7ad5a991aee1c6aaa14bc7271eb08f4",
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    "signer": "0xE020146C7aCDba5DC9524606CE182F8A3c1BAF36",
    "userId": "294330"
  }
}