{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x554618f59b8c437d81a23b78f65ad061bbbc57feca3276040836f8a264b97830",
    "signature": "0x3d3e99af9f463182fa6daacae0d865c59a29edebf58242febca47780e5b1e475218b9be43313d51cc8a13ad5d11242c24e21a6ab8d25ff6c465f87749118949a1c",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}