{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2eaae82c7cba60c6f12522ff957a4951bd0681499b74fb3aa9f47ecbf97e8b17",
    "signature": "0x6754ee245475fd10e4a439635c8f50fd7a7ba20c093ea8ae511842d5b059299d72776bd5a5b03c333831011850d48740ce1d34ac88a5169819d59d326fe917111c",
    "signer": "0xEd451C4DE41a4D96a1bB2813c48B0be0DEe82fE9",
    "userId": "154324376"
  }
}