{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xfc4655ecdca5cfbcd4d0893e65a33ce6b2e678bebf22944f804ff89e3ab28328",
    "signature": "0xd73e2f677e905d79f3030bfea9bd097ac4ce814b480a45ff313d7847a734c236341d7734f1fc6da4ed7f44f278ff8624addf9c188ea1697fa6739dc4a38cef021b",
    "signer": "0xB56F01eBC829d36fE107dbc4CE39b97D5dB51356",
    "userId": "923852448"
  }
}