{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "499346",
    "entityType": "User",
    "nonce": "0xaa9679af319d69ffbd0d6479714f4b9aa068515594eaf2481a959b6c8287a87a",
    "signature": "0xb07a73e49182bf357276d63a57890cf8ee365b7d30f05930f476b4f322a11f7e2fd728577ad13a42e9051ef6fecd9677fabfd0bb82b6bf0744b4b579850131511c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}