{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2044",
    "entityType": "User",
    "nonce": "0x6e15a2d4d8864a733b263c3b741348a547d4ceb8102268c2f2151a07ee02f8c8",
    "signature": "0xa396db16f64f994f4556364eed72c989f3580563cf2329bbfcfbb2fdc3a28c7107935439e53f1f57ed641f727ed26f474ca07621ebd506cae99dfd2629c44fef1c",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}