{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447798047",
    "entityType": "User",
    "nonce": "0xd12c5e2058c83a7f52a3f69a68764e31eb783632180dc0a244f98b74370cc3bb",
    "signature": "0x0bf782b259424f6a222d2deb85db1a4d273c9f7f7f5df0215caa9f4e6c8d68e15a242c712a91043ce5a21650395f58b58ada37664466332a597775339ebe61ca1b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}