{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322088318",
    "entityType": "User",
    "nonce": "0x1073064140dd9d3f111e191a198440785cedac8acaa4d277733ae10f1b20fba5",
    "signature": "0x2f9be53629daf2aa96bae91df0154944aaae4143e233428103a765204691317534b489cf54ed58ea09d82c0f2e3aee6caa285df70cc9bd46e2cd419aa3e117e51c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}