{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "533199925",
    "entityType": "User",
    "nonce": "0x695f225f134e4257d1e15d7cb531d7b6513bf1370acb3550120791cc49887b9f",
    "signature": "0x76602e3671e3c16f988b0bebf609e415bffba3dc8ea54c93310ad8c43d887d6e7ebed6b30958f1e20949d4a6e4b9193fde1f3cd9662811e2874ca847b55897071c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}