{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "119723",
    "entityType": "User",
    "nonce": "0xac9696954af2b2cc3fe690e392ecd4e2981d290abf4b605c393bc0ee83abc996",
    "signature": "0xded8c9bdb1f2a81cbba101e8e6e940bf5c7d2bacce0b76e2636474afe4bdaa8463c70dfe667d1917a49af5d732f8c0541c22d2d4f75fda52bc5793b0853b95b61c",
    "signer": "0xcb0dE1B9981e7D13931d9DDcB14a7597369392B4",
    "userId": "121885"
  }
}