{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6667",
    "entityType": "User",
    "nonce": "0xe9feb2e9cd6cde37c76fc5339f431c03ddaa56fabe9a6ba2ad9ad7afdeee3e1f",
    "signature": "0x5970538ff277d5a8cc3e1660a43e6bd9ac770d0c987c63648a5ffdc6c4baff8c7fd684aeb4a1f32bfc69ddd616bcab015745b0ca91f6249d18f906936e6c07811c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}