https://developers.weixin.qq.com/minigame/dev/api-backend/midas-payment/midas.getBalance.html

https://api.weixin.qq.com/wxa/game/getbalance?access_token=71_RuhPoovrDtoXNP6pHjchT3HpeeXoiXpxx-JWlxRg-Llt9OQHhPI3o2MQRqyfyymVXNvv15QzzP_0Sox78hpZAmDqaN6KwSYKyHtCo6IdiMNIxN95wq_f2R5JW_YETBeAIAQFN&signature=9bbc9d0b4aa4acd911dcb67a82c4ca816d90edaf60f1eb24da8111acf6b16ef4&sig_method=hmac_sha256&pay_sig=bc12fc55c3bcf70e8299589eb33a5aa311fbd0d4da8c8b0011753cc6a26b8be6

{"openid":"o54555ZIlKIQ9YomEr3Kd8fhnMGs","offer_id":"1450076180","ts":1692244154,"zone_id":"1","env":0}

{"errcode": 90010,
"errmsg": "[signature] signature is invalid traceid: 33565843, raw post_body(remove wrapped []): [{"openid":"o54555ZIlKIQ9YomEr3Kd8fhnMGs","offer_id":"1450076180","ts":1692244154,"zone_id":"1","env":0}], base64_encoded_post_body: eyJvcGVuaWQiOiJvNTQ1NTVaSWxLSVE5WW9tRXIzS2Q4ZmhuTUdzIiwib2ZmZXJfaWQiOiIxNDUwMDc2MTgwIiwidHMiOjE2OTIyNDQxNTQsInpvbmVfaWQiOiIxIiwiZW52IjowfQ== rid: 64dd98ba-3ca4cc3c-08a927a1"
}

必现