{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1894938",
    "entityType": "User",
    "nonce": "0xfa8e77b7370c43ff975a474057bb53e4e236655934edf847129cdc0e04556fed",
    "signature": "0x65736d4224df8adfaea33aef5b165c67db67f39541260c5de89a63125a3d55476c53cf07bddb8a17dc1c1875998c34444be1587bef197819291201abd70776c91c",
    "signer": "0xb4069BdA5a7607EE958950229A03ff89Daa817d8",
    "userId": "611142471"
  }
}