{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304545363",
    "entityType": "User",
    "nonce": "0x0e103797460c82a3b1d50d4e29b01754681e19bfa8ffcdc15953a54f78418504",
    "signature": "0xa6d10d095381fbaf430c94add62e5a3cd0430ce3ad9a6acd1719c87aea57aeba114f03de42467cea065b977d2ac9e96bdda980a09f67cb915d031159cc0cc8f61b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "175162"
  }
}