{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "634795661",
    "entityType": "User",
    "nonce": "0xe19df712f58d2591a7835c65e649b332854cddf741a7af2659bfc03cfff6475d",
    "signature": "0xfc44b46c8b9f01bc61a82c014c5d1cb5dcb8785c2ff0cddcb0c64d63adf2799b3bf64c840e8dc0c661783c7505635d3b6410325261640c283b33efe1cf90efd41c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}