{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "619082187",
    "entityType": "User",
    "nonce": "0x1785fb194f1ddcb88dc72b07c70efa6c7b4278042f2dc48306517540efe2c313",
    "signature": "0x134efa298e80ee297d830bb614d1c914eec61458cf3433356db5558c7cd1aec6070c0399ec27784c11482d64550739394bc97ab0c24a64b39a84602eca6bbe691c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}