{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x309ced6cc6eb8de161ad2d85eea5ede0542d1e21307ec2abe5ed0a57fc92f95b",
    "signature": "0x582f5ec0466ca166a0f829051628719f4d074c2304c913fcd50dcd89bd83b3546c441e0c081e4f2e48cce0886d1e3fa66e072645f4929260bac2f5a0e2a18bb31c",
    "signer": "0xd49903961F96e6BD3f33b6cf57f077B5285791F7",
    "userId": "93648062"
  }
}