Cannot access specific value of a hash - Rails

Hello i have been trying to access the token value of the following hash with no avail

email.to[{:token=>"example", :host=>"respiratoryexamprep.com", :email=>"example@respiratoryexamprep.com", :full=>"example@respiratoryexamprep.com", :name=>nil}]

does it not email.to[:token] give me the value of token?

when i do that i get this

TypeError (no implicit conversion of Symbol into Integer):

if not what is the correct way to do it. Is there any point in doing a loop when i just need one value?