{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1868747",
    "entityType": "User",
    "nonce": "0xe3fe3e13f7e7d565a6c84759e234c73a8a025c8a4e27744043dbe6e72453de66",
    "signature": "0x904d98bf6bd98f5ac35f45630f8f3cb3926cbec8b12b19d54237ad9536124a213e44be93f990fcdd0924d774e4d1f33c0f6b36710a4692d89cd0fef3e040bb121b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}