{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29243",
    "entityType": "User",
    "nonce": "0x4968cbf8c951b27ff41afbeca8da11da432159ae855f8c3b62ebe19852334f01",
    "signature": "0xa43983847ce67d2e3485e23b55c826dedd2b2264aa43c45cbf8918d240a2b2573a5a01d160c82e40fb2f3ae67fc3dc20db25eda11d69f9daf3353fa1d69f83e71c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}