{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322088318",
    "entityType": "User",
    "nonce": "0x218a13e23842b5b5f80900d2ef90dafa92c85418ce4e4ec667f5d840aec5df3c",
    "signature": "0xe6f2cedbd36eba941e8627dbaa3d6f34fdc10288f8f3c92d438df06a9176a2e076f23f18df0d426e382de7291c6b1fa38b86f83236361cda6209c76246ac09821b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}