GIF image resource URL
Image width
Image height
Mentions in group messages
User ID
Username
User avatar URL
Additional information in user info
User avatar URL
Note
Additional information in the message
The sender specifies whether to submit for review: 1 (submit for review, default value), 0 (do not submit for review).
Project name, defaults to an empty string.
Policy Mapping Fields
GIF image file size, in Bytes