{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0f8b8421d16496be0ae493f817f6627f6a9e982a0183c696fd76565be71dc823",
    "signature": "0xc7fd981a3e25d6dfb32c41bab75857cbf65372ff5d3b8a27eab34405e0db79b517c3e993bce09784266f76a72ff632d5167f9e636abfe091096853961e9280551b",
    "signer": "0x82825942955ce5712c1c89b3e5fD8193a6dB5170",
    "userId": "489137111"
  }
}