{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x31a9112ac22bbcc3b2075e1268b2d050b07018f837814789beaab6b771079cc1",
    "signature": "0x45335e5fb905d0df5beb7bc125b1155f059ca82d1c11db83918c282506d37293742854d89ef544bc66055442cdac2ef7067c2e56c5cca8cfce6bcc95271732731b",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}