{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390804",
    "entityType": "User",
    "nonce": "0xb8b3ec18224ebdfeb7c685c2631f689ad816f930645dbe63d788b67aeb343e3e",
    "signature": "0x592aed641ed091e6b725f2f012701ad64df40a39649a627275742ba7c08db4c05c2ca484690366bb8f118faf05bbb6b44c06982dc225addb0272174d16693cc71c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}