{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3dc14b57e22d58242a0f905d495a455ae641e959a6c9b34736305f06f3ace4a4",
    "signature": "0xdd4d16ec36aa8724d3e7854b9a7cc077a6f4c9b2a7c16f3a73521bd30ba93d194a58b468870207210ed8f12994ca864c48973f8ab37ba5e2c95458dbc4dd59ae1c",
    "signer": "0x288c1764d068815E5ff1Ea05BD3F2Db55bCDbe03",
    "userId": "18847180"
  }
}