{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355715",
    "entityType": "User",
    "nonce": "0x5734ef52175aa49a782b2b4709b965dcf8f433ee49475123b3fc96c7b42567aa",
    "signature": "0x9b63d6938c578275f48646c9958a8438ebe8f5e31ed1e0ff848495347c06d93a17c2873ee1125c5439c1c5faf10147f45bf4e9498e2c2be9660b6dddeece2de41c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}