{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363994",
    "entityType": "User",
    "nonce": "0x83fb561240f86fffabade289782485f4ec83b3794eccc498bc669287b4964763",
    "signature": "0x12558823491600e3db78426cbd09e4f98a7910eaa12fe2b7318771fd10698ea44228781e571c8c32a6a45ec2b923abb4b9f99c222bb3783bea6d820f36d89b611b",
    "signer": "0x3fB3464202dCA960F65e2706E5749EaFc41e4b48",
    "userId": "826685732"
  }
}