接口:间连商户开户意愿确认（提交申请单）

https://api.mch.weixin.qq.com/v3/apply4subject/applyment

请求：

{
	"channel_id": "184801306",
	"business_code": "184801306_A202312191205075220034",
	"contact_info": {
		"contact_type": "LEGAL",
		"name": "pETgQaSv5iisNHcE/Pc+HbIqBEQkBA9LVy0uIBb1Ul49w2gHSsEf2oIVoiyBFX+GmlgqwyKKTg5+8MoPTeguMfyHfxaYomv9QXvJGWY8NSVeymMB7K66+odLlNjgL38RYkHEWhzofsMk9lacYoChrjpjBFNQbrg8xDhzFU+2WYxO8XL7Ae5tcfOYD29Fy4qGTDfXsh0xfVC9N1T6ie3yKnb+Yef0V4OL0ozGyJC7N9119Nvh+cTZRbZ7rOT+M4bMZ+xSEtusCuSBD9UAA3qPEuLJIt1JA0pYs5nGk/Y5kcOj7JRPeBhB0cTlYLZyj7IJQ+KxyyJ6xEVtzV6r09OXzw\u003d\u003d",
		"contact_id_doc_type": "IDENTIFICATION_TYPE_IDCARD",
		"id_card_number": "nvw4G/VH39SKuOMt+xjUy4P4yBWFcJhe35OKmXAco5iMfEanY1sEtnNfbBjcyHz2Q5g59x/Qf3xCasLN8CyON4CBHibyHNFFajONC68PdodVxMe9x/qBJsNYRAGgk+yAXU5Z6VIpr6vN8N2j5hl2YZhUSSDQ9zu2TjCp5Mc/NBhDw1lio8m+PWd3Vym98xeFG/Z0G7Ck0P8lJUUPLHKGHS6Yr19O6t2ZJetIiXvuQaLY6R1dr+/GeDyzvnwxnn880BKj7Cz5VKSx2olQtPS7Ow9ta7KrmAGitMkZ8aqpy1nnVxZ8lEudfq4t1yFHjs+VT6pzQPdD0Evsf9BCnrnQVw\u003d\u003d",
		"contact_id_doc_copy": "V1_ASKIjZwA8AHu3UMrZ4rNfB4BdrzfHmMoPrF1ESfCEOfbIBLddR8NIbOdkG1HFvkxNBBRbNzzZAyhrJLUv-Z9HwLJOzY9eQhmv6giwKWUAjk",
		"contact_id_doc_copy_back": "V1_jVPPWkdNA7D9oWqPHMcH2R4BdrzfHmNEYC6AkwVd1aLsHXONcT0cIeKYkG1HFvkxGWXZ33ZUPnztzAgKtqT16ALJOzY9eQhmv6giwKWUAjk",
		"contact_period_begin": "2008-08-22",
		"contact_period_end": "2028-08-22",
		"mobile": "KBCPhBsmGFV8zaoOzqunokvjEQ1ktC1Q4K3+kzG6Pxi8/IPOabRhBxJkEihmiMeA6XVA5JL/21H858snNjw1xIrz/5HCwhvZeY1+FcpLnPYyh7qgq+NPbXPOIdQmQQTnrB5yn7y4I3X0PMLr8NRyBvyVkbt1ZgjWLgiqWdKSGqNcppZx1FCN36rAsNuZvt6EqQlC9sLMRjCSj3zYYpr/PXBZmlwWpLFPWD69biVlF3VLttyKhPTMl9wnn2JuGSiI8EonMpwZ3avL0/WZ3S6LQKpakvV62Dupl/nSMu2xAlardB6PJq3CGxvoxCyPLJbpo4Gk+6HQsMg6GuSKHJlg8w\u003d\u003d"
	},
	"subject_info": {
		"subject_type": "SUBJECT_TYPE_INDIVIDUAL",
		"finance_institution": false,
		"business_license_info": {
			"license_number": "92411********NNP69",
			"license_copy": "V1_Sb5_H1ZGzv2Ac8J6hMY0qB4BdrzfHmMoGx5Ap0gfInDWMvV2EBkPIeuGkG1HFvkxyneA3TtTSg9BxigapIgBlQLJOzY9eQhmv6giwKWUAjk",
			"merchant_name": "夏邑县食品超市",
			"legal_person": "李某某",
			"company_address": "河南省商丘市夏邑县S324",
			"licence_valid_date": "[\"2021-05-25\",\"2999-12-31\"]"
		}
	},
	"identification_info": {
		"identification_name": "EW9Hl22N7LfAv86c+Q/llIVOla2YipqD5vIh2uWhAnfkHqAm9bTWENyi/+9cQv7FhK/60P576OTAQHNo926nB8RdaUhKYHHoZGfqo5fVjRecBG81GgYMMQWXSM4zHwyeocq4HJO2eT3d7plszk2tU0002U/HbKMTKkK8bGwf9uQ2qdtV3MHhIeby0X47nlyLqRzEwzJUrsypZbms/urhLs+cJcqNXP8xnutDLbvQNdzeTjNJyICQBLA9/zj6mcTvPoS9MBPergRe7ca5qMcutKgG+lQto4QgX8m0MzHZiMgYDAbFNDoR6VN1lzjKOdn3Y5/Phs+8NmAEKbFLQQpUkA\u003d\u003d",
		"identification_number": "UxDge96g6Vy2Zia/uNuhHgiCS/CZVzhg+tCLs/j99EpA5gVEicSUguAur5kkKEyYRpSd2PhxvDbz6howkZb/5h5s5uk3sCjCVyHnGn8UGcX119ZxOehO/DG8RtwNCHgd0eEHudaiSOkTmxcBLzIb7ZRqHN4tVv3Ay4vQ+IJVAyh8qbyp9lyUr4XiRvnF7srCEbJ0nQBVy8KfUJ8lpL9hG0Ol9s4fQUM0Pop1vXZp1mdVFQ8G29oiMVrmke2W6eOs9BRDdsE71dW8grFpbunRqRsfDhkyUWCZ4b6MbRq/7f9Bugp2hk8i0Pl4IO7OLa0sbmf9devQBEuAI+BCir1HGg\u003d\u003d",
		"identification_valid_date": "[\"2008-08-22\",\"2028-08-22\"]",
		"identification_address": "FBkT8IhubA6mdw1oyzy7bbUfwD60scrv1LPMpdFPNvibYDLttu7rAaTa07hatoH16AkfE7OB3RI24+wBAo8MxpTt+TJQ32bkJyKqkAtPEW3R/DoyslQ4Erv8iGe+LTnGbIuka/N0NTaqy8zuVcb2qvhaDbjWAKhrtZdSuKIhCWapRP8gpnL0ngx4AAieXWfMVoLVYHHHZ73YxnkoLOln4CAMMzU/GJkSFwgtIi6aoqe90kaQqli5qCUUBo65g20MGRpBTd7o8/vYMGcZk0GYhWOBZBVRB4L/5CHKhE2cUcvml5dES/ap5g1JWUGOfyi4d+dPYUbWejf598LnioG++w\u003d\u003d",
		"identification_front_copy": "V1_ASKIjZwA8AHu3UMrZ4rNfB4BdrzfHmMoPrF1ESfCEOfbIBLddR8NIbOdkG1HFvkxNBBRbNzzZAyhrJLUv-Z9HwLJOzY9eQhmv6giwKWUAjk",
		"identification_back_copy": "V1_jVPPWkdNA7D9oWqPHMcH2R4BdrzfHmNEYC6AkwVd1aLsHXONcT0cIeKYkG1HFvkxGWXZ33ZUPnztzAgKtqT16ALJOzY9eQhmv6giwKWUAjk"
	}
}

比对api文档，没发现具体哪个是未定义字段