{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0xcbac233acc717cafbb228a23eeadc99532b8d0c4d6e680fa5e19f86d812fec85",
    "signature": "0xfad5071ab6273bcfe56331429082bbf49e2f254cfe57fe51b9cac73622819cbd38bd36944b37652bfa5161a351e3b8ffe958b05e86ad6a6e4a95acf6b78b2a9d1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}