{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xff009791650719845c9dc37bde2e6b8e24de8362ae44c293ab921d9d66beb368",
    "signature": "0xef7051da093061ff14efd4c8e19302745b94e81237585fbfe46b31cb6d2775bb4ce87c35e991ce1e7563ac25997bfb8320b94dab5cb3232778d7f26eb90f270d1b",
    "signer": "0x0Bb059fe8308cB4D6cDD7d79E6b2AE72b3b9DD2c",
    "userId": "731388658"
  }
}