{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123985",
    "entityType": "User",
    "nonce": "0x5e5994c4704666cd8d96f2fa5661cc3ef70951f291b2996ae727aaf10cf14e21",
    "signature": "0xb30faf917635593bc1e08df5a3d0cb121aa91e4e16b89dac58f57355e46069de63cdf93103c978b874feb814b33af1a909c7851049386b174f2a3640f25dd9631b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}