{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0xb26dd0d8a1ff6e5bf75cf99738fcd8f767ec9b8b1c475da52c1f0bc0567ff3e8",
    "signature": "0x638bd1e3e7bf9649b3cccc5e70f2f49d45ab62adeaeeb7b5571b21c5ad7af15156fb7dd442d8d6a10ca3eb4e4d33f44e899f16ec1905947b2d33d4b6b71f12771c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}