{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "761893",
    "entityType": "User",
    "nonce": "0xf51b60eb60347d04fbb629d4e5a91740373bd9bf953b2e778253061c0d86ae85",
    "signature": "0xe32eeff3a66533b2fea8d84b41968c4b9520e5d7a529dcd2950ff8924738c7c901e6f1c066ba49ecd6b3458a1a582563b8fefe0afa0f280c86419cdd9e567d3b1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}