The short answer is "no".
The longer answer is that digital signature validation on the desktop involves using digital IDs and certificates. Signers have certs with public and private keys and signing workflows involve using public keys to validate the signature. Public keys are distributed to participants in the signing workflow, but the details are set by the PKI admin (person who knows how to set up signature workflows that use certs). On mobile devices, signature validation does not involve certificates on the device. The eSign service (EchoSign) verifies a signer's identity without using digital IDs assigned to each user. Signature validation happens on the eSign servers.