{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x4474d6c9abf899e18ca8a7b98a8d9b7dac945cf064d43783c4f4ce44d2680fc9",
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    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}