Common Response Body

Field	Type	Required	Description
status	int	Yes	Business code; see Business status codes
msg	string	Yes	Message text; for the same status, read the specific reason from msg
data	object	Yes	Business payload; typically {} on failure

Success example:

{
  "status": 200,
  "msg": "SUCCESS",
  "data": {}
}

Error example:

{
  "status": 401,
  "msg": "签名校验失败",
  "data": {}
}

Notes:

• On normal handling the HTTP status is usually 200; read business result from body status.
• Business time fields (expires_at / created_at / finished_at) use RFC3339 with timezone, e.g. 2026-06-16T16:00:10+08:00.