How to publish and subscribe to the dictionary?

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I am trying to publish and subscribe to a dictionary similar to a list but I can't.

The list is [1.1,2,3,4,5]

My code for slave or talker is:

#!/usr/bin/env python

import rospy
from std_msgs.msg import Float32MultiArray

def talker():
    pub = rospy.Publisher('chatter', Float32MultiArray, queue_size=1)
    rospy.init_node('talker', anonymous=True)
    rate = rospy.Rate(10) # 10hz
    while not rospy.is_shutdown():
        hello_str = [1.1,2,3,4,5]
        array = Float32MultiArray(data=hello_str)
        print 'gggggggggggggggggggggggg', type(array)
        rospy.loginfo(array)
        pub.publish(array)
        rate.sleep()

if __name__ == '__main__':
    try:
        talker()
    except rospy.ROSInterruptException:
        pass

The code for slave or listener is:

#!/usr/bin/env python

import rospy
from std_msgs.msg import Float32MultiArray

def callback(data):
    # rospy.loginfo(data.data)
    a = list (data.data)
    print (a)

def listener():
    rospy.init_node('listener', anonymous=True)

    rospy.Subscriber("chatter", Float32MultiArray, callback)

    rospy.spin()

if __name__ == '__main__':
    listener()

How can do it with the dictionary? The dictionary is {u'person': [(360, 196, 558, 460), (184, 183, 342, 477)]}