{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3068b79a1536fb15fcaa5cc9f0405564aa7b64a33a4c935a9fd73996490aca07",
    "signature": "0x6752ea1d5d229523e81ff3694fc4cb828cae3524f976c4b20d35f485a7b5b47741d5d6d3ca2668d94d6569c3b83951828a4842815a69699e2c087a5a2170dd061c",
    "signer": "0xbB7C53987c1dBEC3d48F730aCC82a87A366c7114",
    "userId": "395503078"
  }
}