{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f109c37641d37026eb10710c1471a21cc8553d85ec906d3e429cd1e9a869969",
    "signature": "0x3e860f60f7b3d8bee45b0416e5be6cab8a79f3cd7ce6ea3d371be3df10cc5c9b3abddc001e7e9fac822dff89ccef156dc7db35410b360c3ae287c4c7d5d64eeb1b",
    "signer": "0x06319Bacff0A4B00a2ba469F00671687201fa74E",
    "userId": "998837220"
  }
}