{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715633189",
    "entityType": "User",
    "nonce": "0x86ec34e3cb96426dc58ae8ff5dd2b2445ebdd9f69f9ab9736223c6e0e3580e8a",
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    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}