{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393620456",
    "entityType": "User",
    "nonce": "0xebaf1ae7738e95a2776d4adbb1eaf33121bce68c67fb44744fc454080f406f15",
    "signature": "0x02a6fd9a686450392c27244451004c82cc97761eb7381b17989c86a3515343171f09d19caf19fddde8fa859b797a26875af14ecc3ae90882fdb5a7fbd84f55951b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}