{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1320709",
    "entityType": "User",
    "nonce": "0x19de0c4bb900f971d8704d97cbded82409d42279fe747c57ca4d96480985a8d4",
    "signature": "0x6548be288bfb8cefc6648f0edabc9c51f094533f3bb41cc10c859bbc7f8d1fcc6f613d5476be6005e7a4507e0cfecbb2769101da5ca4d666e1244f9fb9627b081b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}