{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "267041298",
    "entityType": "User",
    "nonce": "0x9cdacbddd9c52268c6d50395ec8e1dd73bcb0d9b1cc206d50b17dfcbe3521d63",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}