{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x4d0d9247dcdc779edc05e60f6b0bf67170a518b8ea0734c50e59ceba180a49d1",
    "signature": "0x527682905c4fb71ef0c0cb4c48985151f96ebf838415782db8f417bc686ca1750227e81328e8db2889c5ee698056dc59d8e7d1cca2523222f64efeb453ed6a121b",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}