{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "112383",
    "entityType": "User",
    "nonce": "0xf5de071754a699f4467c4a57acaadcb1f1044cc3c6acab41d2c317ea7e00b49f",
    "signature": "0xd6bf4777b03c76506b3f402a500e224b295d39c65ebc2f74552a5f43bd3d35304adc824af4db391ada5851333bd6b873411d9662afe5d2d6419a9d9250dfd0b01c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}