{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889450527",
    "entityType": "User",
    "nonce": "0xef30dcd8b70fee9df648778cad3b318176ca35a8b666f9c7cf556a92e4ae8b6b",
    "signature": "0x06db0402d261b1732773e02bc85f5b92202839a929d956e4a63504686a31c0cc54315084bf37a267005a6721e3be2cb6d197fca4492dec4da1f8937cd1e8a9551b",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}