{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x9f342d4f8deb38a68ab771a4da2b38dcadd113be8c6be86d6639c8d98d01822d",
    "signature": "0x5f1795a3f205539a569387ff6cfc784bd49f354d03f04e1a29aa999f8664ffa76c8062133dda092403ed49e8a23e64bd17dae860ccdcf869a1a0750a93b0a2b01b",
    "signer": "0x29aF37341ECc995FDD7C5fd1757A5a695244AADC",
    "userId": "113302290"
  }
}