{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x4c9990f265f174fdfc16a84ace95acbc7ab34149d4eb947a4d260581e0841c9c",
    "signature": "0xef3d11cc2ffafb1c0a04998039c000f256903b79190bae117589ba1f08f86dc24bf58ddf0e47cc1ed48328ec4a010853bac10c477febf6b6e5c319aba5d81ed11c",
    "signer": "0x893f27cC599C8EF276aD52F8Cd0F780883C6e827",
    "userId": "590068580"
  }
}