{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55875",
    "entityType": "User",
    "nonce": "0xee73dff630ada2008e3bc50b1b0d4bfc3a3e7e6905a51000f1db29fcc38920ad",
    "signature": "0x33899cf59442c8e12198791ed9fda00fc252486c3ea03c6b9eaeaf66f153efa4688b3b674d85dd7b4c925ff83fc66d04330fc92dc3c8658a85ce83c10274b72e1b",
    "signer": "0x3939e302479fE0F42271820cd8E0b44A47273209",
    "userId": "540529323"
  }
}