{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216278113",
    "entityType": "User",
    "nonce": "0x80b961c7ad19e945b3beaefaa704c694443e4f62330762fce1103366a04df92e",
    "signature": "0x6e636b815a9297d4a881e9ec2c92d9b29fd353c357fbe51cefc21d2b17764cf757f7fa51dff79f2aad54636785d6c3cc9f0fc730486c289848a6c01d46da6bf91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}