{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf403910db70b7d0b756c2b11a7910957323473a17c7b10f70328f1ce00f5ec42",
    "signature": "0x6b188406772e515c0ac5775b4f84942d28e94f5974269c5100e35d809a58a0102a11511583b516bccde28a997c8694be109274215194f55b0bb999c6f2440a211b",
    "signer": "0x5bc693b06E704c96d4Fdb9E49886F1CbaB1E0C30",
    "userId": "210281347"
  }
}