{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x33d54cd7a7f36ca168044d8b61c59f970691451fecdb9783cd9b6bd31514d4ce",
    "signature": "0x7bf47b8f989c3489a26ba649e3d90ed910c14a849573c54873e6ec3d1845273f73f24d9994c084543de822ac9e319344618f138694913db8e6ab98a4c8c87fd51b",
    "signer": "0xF4b3744A3acf7b2f977947FC5C559952b7ca4C14",
    "userId": "938222319"
  }
}