{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103864",
    "entityType": "User",
    "nonce": "0xc72d6732c5151c4eb3d25455aec406934eaea8c69949e4aba2f1565321e466bd",
    "signature": "0x28b8f5595cfa319832e18bb0763dcc86ffe965405ed3855c3d758c9c55f7e62404697f8b5fcbc8efc478ca7bc9eed7b933048d8a1b6e8b3b056f6a8c694cfc361b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}