{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273403361",
    "entityType": "User",
    "nonce": "0xec03cd0feb1b3bbebecc56f2e454b86efb71d8b1d7b5a01704194c31be630be1",
    "signature": "0x45e41d889f20a7204760601e9dff82a4e7900aaac100876cfdfc72195daf293152d280ba4f314985297ca6217007418fbbe46a70268b96a6619b16723c4420231b",
    "signer": "0xeD139490fB8A8B790F6AC7Ea884F04bBb347783e",
    "userId": "946897782"
  }
}