{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf936ba33599d81c04fc6d8f04b305a4da8d86add6fa34a527a1f42391ead1444",
    "signature": "0xb5616ce721bef1018d2e7bfa586f6e2aff339cb063e84da7ce879d094a6a92076cd6313865626c61c083fec913b9ab15069a7930c33e44d6f8c3a80fc7bfa5e51b",
    "signer": "0xaD2943cf8b72499A607824F1f47422500Af21895",
    "userId": "903623679"
  }
}