{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447798047",
    "entityType": "User",
    "nonce": "0x0d63e0500125b596c8b232e038c7c89e019ec6460a8779230c0745ed08514172",
    "signature": "0xec33bfdcdf8e923c05e03980e82fa3c0dbf05923f967c5ab13299927c2eabb305ff8b156422a59d440414d9f69c0c703551f6d7cb4f4e0aed79d9f561a9746b51b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}