{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "228972129",
    "entityType": "User",
    "nonce": "0x431ee7a222b53b29c697d367e6b4ecbe3e832a476928fd4ccb3ab9f47b56a442",
    "signature": "0xc6bca3aa60faca69be160cd8fa0a188048dde237a65f599c54beb36916d26a0550ecc3813940837af1708373b7396f2772621ec84fb7b5f11676ba17a193ec2c1c",
    "signer": "0xD2F1503C4CA21570EA2aFfA45c7B3247A64CB334",
    "userId": "262358490"
  }
}