{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981147337",
    "entityType": "User",
    "nonce": "0xf9074487a222640c8d3e0ad1634107343165e194da453c22f130d479bfe25836",
    "signature": "0xb4438f6780d8894eb7fcc28ce5e5858d6f4babb28e6a639e9ffe2e93bff06c7e45434bcc48605822d8564b9c2515082e8e2ba12061d9669e84fd124a6220641d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}