{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171446",
    "entityType": "User",
    "nonce": "0x4ba22f05bb1c500f3e9a43327de13400a1dbe74cc739812714b25fa326b35f07",
    "signature": "0xaf7e3cd0fd6f55ed83e8505f67527697c411a38c4024ec7ad666043a2103ef28373c5f92958fc43bd5c65e5b15f796fd92e8c0f599fd3d7baf222f2f30a8d1ab1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}