{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "918401099",
    "entityType": "User",
    "nonce": "0x2fbfe6b160eb83bac270d95b6b6291add114dcc87f4ec144397ca41f373439eb",
    "signature": "0xdea48bcdba539dedfba07d5d41e3f1478360598b87514a4bce69e965fdeea5f16f8d1e2454c95f2ad6bcc136760379581961c83e1bfc96f432a77bb5bbef794d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}