{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307550",
    "entityType": "User",
    "nonce": "0x03968a4074b0bee9a042729192986fd3179821087ca3a09dab8592a5d3aedac1",
    "signature": "0x2291d7975db028fab832ce9b0c710af650d9ae94691bf67897563673282f0caf59a9cc0f8c5d51da1eeb86505220a6d75513837b955581d552bfd44c5da63efe1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}