{
  "synchronizingTable": {
    "options": {
      "transformerFunctionName": "someBlueprintFunction",
      "source": {
        "tableName": "someNamespace.some_table_name",
        "hashSumColumnName": "hash_sum"
      },
      "target": {
        "tableName": "someNamespace.another_table_name",
        "hashSumColumnName": "origin_hash_sum"
      },
      "join": {
        "source_pk_column": "target_pk_column"
      }
    }
  }
}