{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16499001",
    "entityType": "User",
    "nonce": "0x59683f4cd5386dce555ed054fe027882530ec46e0c879ac6f0987da0d4ca2ca3",
    "signature": "0xb2a79bc7ee38e87f48b88508528a48437f4f99600e1875788ffcd7e3012918a50c0a6ea9d7ed4cc8d46670aec978af83647d9c48ebf05725714cdea4ac1b5fa51c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}