{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "803246563",
    "entityType": "User",
    "nonce": "0x851c14c3a2f10e51090a5e683b39a2b6f0e61f563b884f9febef5a214d5b8421",
    "signature": "0x213edc7dea5b14f9e8ad64abb9af2a86ff5bfc50c377ab898f2c3a7340cdf9ab442087f4a752b65dbc77fae75e9c7bcd12142bc8d8e73bb4ac2a9c86fcc60bb51b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}