{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xf4550ff0e5a7d35bae2b4198791b95f7f3fe2bd7b293568ebfef2a49a8ec62ae",
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    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}