{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0x10317c0dd5dcc94c6463f630099f4f115aef1c1ce05e9c6ac2719d6fba27caf8",
    "signature": "0x9100431f5e5b3e1453bc46bdac8c42c8469df23f88d95454a3e5f53e7b2621783e14e596c9abc680c205f52a0d93c8053fdd38a6472dcadb04c4671c5fe8f0f91b",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}