{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294078",
    "entityType": "User",
    "nonce": "0xf6f7280122477606fc0bd3fb71718470dab75ffb948e907f4c4cd8e6b0e764d2",
    "signature": "0xf4f8bbb297bb6ae73c7341fde3f91015a7bf627425c2dc0365e0d978c8445df276e04e4579e06dffcf9c82075fa14a00bdb6192b50c96b4f61f1a37b6e8a44261b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}