{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81381644",
    "entityType": "User",
    "nonce": "0xfa1fc0e52403f1af3233fb5433e4f3b29555e6fbfe613bb77ec5176199a008db",
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    "signer": "0xB57F94Ef9a26d73E8b35D3f37FccD18BcC7eeE00",
    "userId": "850416615"
  }
}