{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1839a58b3ff0b50a18a7a8ab302ba9aa7cf03bac8c73a98b05908cdae850afd6",
    "signature": "0xbde304d89f347d8dbf3ac29f371ec99996a8684666959726d70583acadf2d6287edc466bf920e96bf34842e39b4a9c2fa5c9202d8b5f264702d3effcb727c15c1c",
    "signer": "0x1d4A651135EdbA316DF8Fa04DD51e14B66181288",
    "userId": "786376397"
  }
}