narval #3687136 integrate signed request [validation pending]

the patch has been integrated, waiting for review

prioritynormal
typeenhancement
done in4.0.0
load1.000
load left0.000
closed by#548d14cc4e8c [bot] use signedrequest in narvalbot (closes #3687136)
patch[bot] use signedrequest in narvalbot (closes #3687136) [applied]