{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0x52c5fddbc02cfe1c40c2a56a937b92d6e84a107a06fae67c292fa34fe854360d",
    "signature": "0xa3c76f438b6ffcff2b8724215233f75fbece986d5de0d6912139b88b5e87f76c2c2b0a7268306c5f4be3e3aaf91dafc41ddf453d9e028310e2f57125353579281b",
    "signer": "0x82cA7Df5542CB66161Dd9E12fb343f69580ed64a",
    "userId": "102548476"
  }
}