{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x83f746f5109821b6aa41907f8c48095dcffea54216ce92a6addf28708a06ab10",
    "signature": "0x4650a0e7fdc74d01f8398bb0b886ebddbd3e9f7045f693cc470318500b14aa623b8e1958f88c76867316d6cd9172c222d7a4dd609a94df6f86859a915c9eb15c1c",
    "signer": "0x27686c69c3E5E4BE1014e8b5880ffD7BA8713dDa",
    "userId": "265134730"
  }
}