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uint32 actor_id = 1
uint32 user_id = 2
uint64 pre_msg_time = 3
int32 status_code = 1
string status_msg = 2
repeated Message message_list = 3
uint32 actor_id = 1
uint32 user_id = 2
uint32 action_type = 3
string content = 4
int32 status_code = 1
string status_msg = 2
Used in: ChatResponse
uint32 id = 1
string content = 2
uint64 create_time = 3
optional uint32 from_user_id = 4
optional uint32 to_user_id = 5