{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43580",
    "entityType": "User",
    "nonce": "0x289642f80940c4f881272639996d930c5a30c6814e7dc467de9d278a6e42896d",
    "signature": "0x952d4bdd952f314d2f6e0b76b56592d9fc690a7cbf7f3c572812ca7d70b3e5a7398f31b380793cd8e5fc2186c8cae94118faede1f12da90bdb01090d0a55729d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}