{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571869547",
    "entityType": "User",
    "nonce": "0xcf8541125de13529a582213dad72e3b719cb181a52bf88e0472ca452c06b4c3d",
    "signature": "0x95b93f74e7c90adc56ca89d759f065ebeb0c6c0b00243411b88729442459e66744fea1b834ba706aec3edb89508095ec1994d6ca338b2f2f800f664ea54b5a8f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}