{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcb5783eac3eb8bfff957b9e2394d1e897ac81b90f8b890f3dc335b4828dace5e",
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    "signer": "0xb11A87421a60283b875d2F958D27356167224eF2",
    "userId": "858465138"
  }
}