{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141429",
    "entityType": "User",
    "nonce": "0x3f266ea1237512eb056b10694411063823518c942b04c32caabb4c0b058127a8",
    "signature": "0x52a1807e027c81e32a7cb77889eedea9edc2520f8d17f8e49d5538efc29566bd357cee4bea2541c0ccb5edec8f423cede57e291022f971a35f10e17cc4194bbd1c",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}