{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108427",
    "entityType": "User",
    "nonce": "0x776e075ff39ff0903654124309cb092b0d90fd9dcf1c27ad29b42c7b3c222318",
    "signature": "0x3601313a024ff372815cf3685d93059606f86c827fd94cdac53925f0a8cade624832665b919200d9a963511237dd607a9badd2b15992c1a5b943df932d845c1d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}