{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128008",
    "entityType": "User",
    "nonce": "0x45e56fe710ff0a040dbc5af7ec1443dbd3935027b440f429d1d47de93b36402b",
    "signature": "0x8fda38aad3d0478b3cf39c775f970747c67d040e224bfc8dcb7dec0ea9a6d2942facc6087ed719e15a42d80f71afaea2099907113c43ad191ad0cb53ac32c0be1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}