gistfile1.txt

var data = [
	{name: "otp_options[otp_option_value][5][otp]", value: "617"}, 
	{name: "otp_options[otp_option_value][10][otpx]", value: "617"}, 
	{name: "otp_options[otp_option_value][5][otpy]", value: "617"}
];

var data = _.map(data, function(x) {
	var tmp = x.name.match(/[A-z_-]+\[[^\]]+\]\[[^\]]+\]\[([^\]]+)\]/);
	var key = tmp[1] || '';
	
	return { key: key, value: x.value };
})
data = _.object(_.pluck(data, 'key'), _.pluck(data, 'value'));