{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85be0e9355422c7b7869bde68d59ef8f88fdb5fc7d444cd96883832e14c33106",
    "signature": "0xad21730b9d20c71dc121c831687263739450356456f0e9d29d9da17c46810425321c101ceb5a5aa73465e0c57759670edb7af6e081bc16be952807ba0334b9ff1b",
    "signer": "0x1e790323192cc7A6755829dBa7Fd3D0870FF3826",
    "userId": "921777960"
  }
}