guid: (len.36)*
format json
callback: (len.100)
act: (len.10)
act_revert_after_positions: (len.10)
act_revert_after_ts: (len.10)
echolist: (len.256)
week: (len.31)
sun: (len.31)
param: (len. 2048)
cmd: (len. 512)