{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc07168ec727485d943a33db546f3db2733e6c683544e2cd64cbe529cada947a3",
    "signature": "0x3657eae44a476107bcd4a6c25a06ac093584659359baee5041e1896529b5cfc841e840f749fa2be6663b81a5641189176f9723ef59cfa483b361377dc3ffafe21b",
    "signer": "0xd22818b4dA76AA357660ea09F5F1Eb5a8bCD3780",
    "userId": "217926720"
  }
}