{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae209874d2cb9546327f9aec8abe615565ee7f27d97995124caea1dff8149013",
    "signature": "0xb635a7e8549006713b249cba231a01d8fe17aed68481603e2c21365cb23f624760d0d1875533e80a128353a7117839ad93623f067b27afbf440a6e80c1c496981b",
    "signer": "0x30BD156e8dad48bBEAeC56B3FF393a3Ed6C85b61",
    "userId": "388798607"
  }
}