{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1839428",
    "entityType": "User",
    "nonce": "0xe38198598eaf48facb00436416398104feb5c259eba252b8b23caa76eeedd506",
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    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}