{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10431",
    "entityType": "User",
    "nonce": "0xa2ca82ab1e584863d1e80b3c8d22d768e06a24a47fa768a56bff5cbb331fd9a2",
    "signature": "0xe5f646c3f5865143add311849d209eadfba8d80299951fe92e3290f77453f622560838705e91398cc09135581f56971f3c835331c0722eb4cd14d1718ad37cf01c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}