{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "977881607",
    "entityType": "User",
    "nonce": "0xa65abd38e9a27e5dce6b715d2dd7165fc4d255b05a1492814dcc6e50a31a5987",
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    "signer": "0xC1896EAF7ae2431A08647A163291b5a8A0cd2a6C",
    "userId": "185209372"
  }
}