{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60213bedf3d952349b1187720e7c1fb2e79b336e2bc1665a4d3ba27d730e7c00",
    "signature": "0x650f12384ac24ea2994b418247f6608e0a6f65b9abd3fa2387290f6e8895fab77c0ac4accb8ead7faa60edc7eabea3d90e1323a4c47ad77919dece5d6e0c6a781b",
    "signer": "0xf085f5a43715e07962d628580cF93c8b30cd7c0c",
    "userId": "720013778"
  }
}