{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9a1fe236a682468fc782019bb5e7df2f4c5d06ed1cf19e85e594331746afbd83",
    "signature": "0x8386a3eab1b0e316ba21fdcfa01dec023106415578db133dcc9a12a5047cc46775ae578b674f24ecbd96ba79a56acb290485533d942be90a209e436a6692cd611c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}