{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0x927b38f86d0c17041260e7447d5f1e53d535258e3682d5238f4062c138751c3f",
    "signature": "0xfaef84e9dfa8653d14839e9773f0afb754f68a59230af11d76bfd04535b809cb17b5a8a577a301ed615de95edf17637b448fafa5726ea56a1dd1fb195370c8f91b",
    "signer": "0x635a32c502d056dd6e3f4aC1eb15Fb0d90a88171",
    "userId": "1640466"
  }
}