{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x79c3c525013bea5e39a93c6ff9af452337bbf50f24246485e458053763d84e8b",
    "signature": "0x8c227a29709ac80dd5917e30aa6d6adda66998faf5fe55920a5f8e85ac18487709d194ef86983f48a5622b9cdfc4f4a36443f1e4bb719a35f643097aa41d9f0f1b",
    "signer": "0xde8983cfa53dD00E4e03E265b98e46eF18b3195D",
    "userId": "563890434"
  }
}