{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759449",
    "entityType": "User",
    "nonce": "0xf69fb2e536a0c74942e3b277c2412db106ea6ac4bf109eaac9e635d9900157a8",
    "signature": "0x35279de9a37da33e4c3957de72a2e48d7083ea41026dd26c0975923aad117e4b002db7e88730432589a0a943d6d7d824e6cd1358ff883da02ebf7c3363e044b81b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}