{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "576672259",
    "entityType": "User",
    "nonce": "0xc33afaddd22eeec633b2ee3a6366f10cebe6a9e1f879c308ea18ffff3a9f1671",
    "signature": "0xf85a1d315d4c8acd2f70050db345d8ba81090b729d095dfd5e5937a3ff2be7df79ed651399263893a9208960ea93bab69fdf436590f7e748854bee8e878bb00c1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}