{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "177494",
    "entityType": "User",
    "nonce": "0x50f35225a922d2fd3b5f2bff88a31f62c138b9cb356ac8d01ad8cf2917b2ede8",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}