{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x446efaece2d9e0b4f4c5a20670ddeb3b2a25cbab233aca676963ea4e4e213a18",
    "signature": "0x8a55bf18fe33947aee6b9ad54d67cef43bec19a5954f9892a5294211390efe3c2ec1923240c4ae6f156d2500166d8d1271f306e94545be2b78eda3b01d7537371b",
    "signer": "0x44Fbe3F3e10a5cC9F4b398865Ec600e579De0AE7",
    "userId": "96259303"
  }
}