Submission json file

Dear all,

Could someone refer me the correct json format for the submission file ?

I have generated my file like this (but it must be wrong)
[
{
“image_id”: “006452”,
“category_id”: 1040,
“score”: 0.258413,
“bbox”: [
5,
15,
417,
409
],
“segmentation”: [
[
5,
15,
422,
15,
422,
424,
5,
424
]
]
},

Many thanks and best regards,
M