{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfe449ad0c804f7c0689e9216634562026c7058f8e99709e0522921ddc64f9ddc",
    "signature": "0x69cfe6e49ab9136ceb66be5116192a775a2056a3c883a534f000a07b83606df612fc7b644bb6db3a92fb4547de0f6b7bc1019f1a30f40b2c7f2ac040103d37261b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}