{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "897",
    "entityType": "User",
    "nonce": "0xf00a1bd22a7bef5f1c10270ae279e0aa631ed300e909b3ffb3f03f5d0f36c4c9",
    "signature": "0x395d5c1d5b87e4a15ac836530644cac084eb76d1c1b6876da1ea12d9176bf86066697a1b021673851ed87c59d4d43c049c4646a00ee7c27b456b26bcf844220e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}