{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "832604939",
    "entityType": "User",
    "nonce": "0xf09f0a70a6180b973738cfbdfe9d88a7b7833b4c70ae3e27eb1e5e50c3c7531e",
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    "signer": "0x21e530f5EA8E24d2476C3Ff8253D151693719385",
    "userId": "854449345"
  }
}