{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x25d0cbb5090a76f51a5b367c6fa87f6ffc1bc67e7b8d7f65c21bd4997388e5ac",
    "signature": "0x789568c6d01c45ba457ef5548e6e6e661d2ed0efe126e0aa713809e599b7450d571bbe1dd2b5fdbeacddc25f011a42280200941117b336f1c28558d3674b9cb91c",
    "signer": "0x52736F67C02C10d42Ea4e6262BA861E854f87423",
    "userId": "776850188"
  }
}