{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322657",
    "entityType": "User",
    "nonce": "0x89d44fe4973c38455e4408fa5b3781eb987f62ca3820d043316aa804c61a37ce",
    "signature": "0x901cf7b51fd72be954603f026715ff0c1356862212cff58d4ed0edf52b1aa1832751385c05dcef2c553cdedcf7896c83f72e5a890b7f416cafe20d2fd10be2411b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}