diff --git a/rel/i18n/emqx_authn_mnesia_schema.hocon b/rel/i18n/emqx_authn_mnesia_schema.hocon
index ad4082a13..5ebfeaf38 100644
--- a/rel/i18n/emqx_authn_mnesia_schema.hocon
+++ b/rel/i18n/emqx_authn_mnesia_schema.hocon
@@ -19,22 +19,24 @@ bootstrap_file.label:
 """Bootstrap File Path"""
 
 bootstrap_type.desc:
-"""- **`plain`**:
-     - Format: `{user_id},{password},{is_superuser}`
-     - `user_id`: Can be `clientid` or `username`, based on `user_id_type`.
-     - `password`: User's plaintext password.
-     - `is_superuser`: Boolean, user's administrative status.
+"""Specify which type of content the bootstrap file has.
 
-   - **`hash`**:
-     - Format: `{user_id},{password_hash},{salt},{is_superuser}`
-     - Definitions similar to `plain` type, with `password_hash` and `salt` added for security.
+- **`plain`**:
+  - Expected data fields: `user_id`, `password`, `is_superuser`
+  - `user_id`: Can be Client ID or username, depending on built-in database authentication's `user_id_type` config.
+  - `password`: User's plaintext password.
+  - `is_superuser`: Boolean, user's administrative status.
 
-All file format support is the same as `authentication/password_based:built_in_database/import_users` API.
-Json file plain format example:`[{"user_id": "my_user","password": "s3cr3tp@ssw0rd","is_superuser": true}]`.
-CSV file hash format example :`user_id,password_hash,salt,is_superuser\nmy_user,b6c743545a7817ae8c8f624371d5f5f0373234bb0ff36b8ffbf19bce0e06ab75,de1024f462fb83910fd13151bd4bd235,true`
+- **`hash`**:
+  - Expected data fields: `user_id`,`password_hash`,`salt`,`is_superuser`
+  - Definitions similar to `plain` type, with `password_hash` and `salt` added for security.
 
-Formula for `password_hash`:
-If configured as `password_hash_algorithm {name = sha256, salt_position = suffix}`,
-the Python code to calculate the `password_hash` is `hashlib.sha256(password + salt).hexdigest()`."""
+The content can be either in CSV, or JSON format.
+
+Here is a CSV example: `user_id,password_hash,salt,is_superuser\nmy_user,b6c743545a7817ae8c8f624371d5f5f0373234bb0ff36b8ffbf19bce0e06ab75,de1024f462fb83910fd13151bd4bd235,true`
+
+And JSON content should be decoded into an array of objects, for example: `[{"user_id": "my_user","password": "s3cr3tp@ssw0rd","is_superuser": true}]`.
+
+The hash string for password_hash depends on how password_hash_algorithm is configured for the built-in database authentication mechanism. For example, if it's configured as `password_hash_algorithm {name = sha256, salt_position = suffix}`, then the salt is appended to the password before hashed. Here is the equivalent Python expression: `hashlib.sha256(password + salt).hexdigest()`."""
 
 }