{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15117",
    "entityType": "User",
    "nonce": "0x86a9c38345718e1b94271fac7d0798f058b675c053606bf29d0eb34ea0122ea7",
    "signature": "0xce237d8d1137ea90e5ea78ee0efd91541f21b3887229792edfe1219c9f72a3281e90d22bf99af8d69e6682beccd7b24f7677823054be30e985893fc4ed902b061b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}