{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xff26bec5df50ed23dfa28787e3fdb20def2fed93de5e71771e34597df1ddc0f3",
    "signature": "0x65e820914685ca3ea30eda28940e08aafdd5432725657472cde2158fe849d78d6b7e059105ce4f10fc85f88fa25a6b5f22ff2b18f51b60f211df32a1481dbc741c",
    "signer": "0x53bBB50C8B7ADcC1B4cd379BC816d43f63a5AF98",
    "userId": "112048869"
  }
}