{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x62d51ab8fa046cd5f1187c247456da7a26b4f67e2d7d89626c1200d4d84926e8",
    "signature": "0x5d280d87d8474df1721fb6a0bcf8d5b170855beb1dfd0467f9bec2c7dd0e5c984ff8baca9a03b4008558a8c4724f88e353a71396c43210932badce9692c468781c",
    "signer": "0x9A1A483b8f4450Bf43992f98248c0567cFE557B9",
    "userId": "126704903"
  }
}