{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x55b2b878fc8cd4d68e153334e0c4ad941899a9f605d83fdac33fa382369e6ce2",
    "signature": "0x77b1f215e1653a831c8cfb287ee2cf4bc6328ce421590f4115142fab0e81a0242d37f41388d1c9c448b7e865ee866805192e9191c8ad5af72c02b263413415691c",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}