{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385323",
    "entityType": "User",
    "nonce": "0xe361f4cefd1caf93b968d65490386c06accb3b0f4d82100a22eecef2e4df0f5d",
    "signature": "0x3f75d8c2e6869263f1181500da4cdb9418aa3ff9a08ac737c78a3d3054c7ed017b8e588fa725f6ca0f577c9d5ead3cacf8c9d0b16c1b81a7afc7dd25e5fe3e171c",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}