{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0x4358dd0cd26d008792ecb471e9773c304e5390207a2a7a4d7d4e3e17e80527a2",
    "signature": "0x3ab5042ca172c16653e92baabc8747434990224233b8ab7472c46f7e93dd1101359f2a03bb9dfc6ce30f505602e57ad7721c869db28a8e1843251f9bcf4cb8201b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}