{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "537204477",
    "entityType": "User",
    "nonce": "0xf2a5b6f46718176924476d56c5b292ed87446055213220c19b79f09c86f63d65",
    "signature": "0x086ca153165a82db7264398defbed72a7e9bea50c156dce6b4daae0de427f3f5365712b42cd425d0f1e4a2d4790d852c01c9c2209ac8c7cbd08e302ab50dc72f1b",
    "signer": "0x6965Aa9ec89F0ab44c5241159D2188d7b83c1D25",
    "userId": "278763919"
  }
}