{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbdccce334e947bf56c66c000b71577ec5f8865809318d7c86d0a865c53a0219c",
    "signature": "0x303b1fa07423812850ee88dee65ed1379549fbeb0dae2c5b8dc120e2b6d254881e0f1f62547df9eb19cc60bbe213e6c96e143b431766934e03ed1dceb62da9a61b",
    "signer": "0xC8411f2e29585536b0CB63E6163522b1074e2f7e",
    "userId": "151304001"
  }
}