{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "783144909",
    "entityType": "User",
    "nonce": "0xf2592af67ccbdd6efa842dabce39d7d352717602b9d8f3fcf70b839995b17b4d",
    "signature": "0xbe183f602b2d3d0d1ddd9977afdfad1289fa58a9a2a629a1d438833f3adc1d7e7aee8b8ce3d7a5c4d6b6462c033613294d2d3dbd84c823713c0e83d3f51341471c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}