{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xcb46d83b9ead8be9d48eb998a49ed981b742e8cc03ca83d634a822df9eb2ca7a",
    "signature": "0x2c4c664da03eca7bb0697f01db23a12a644f3a39bc67b348d5bb7149af52ea6a5b2276c175437ab1e7332f0ef9ed610db5c4221bc72f30532da57e4dbb89a2831b",
    "signer": "0xCE1807CbF44d0BF3961D9A4B757dA508604b77E6",
    "userId": "157032641"
  }
}