I am getting a pgp error on this package.

  [nexxuz@localhost ~] $ pacaur -S lib32-kmod
  :: Package lib32-kmod not found in repositories, trying AUR...
  :: resolving dependencies...
  :: looking for inter-conflicts...

  AUR Packages  (1) lib32-kmod-25-1

  :: Proceed with installation? [Y/n] y
  :: Retrieving package(s)...
  :: lib32-kmod build files are up-to-date -- skipping
  :: Checking lib32-kmod integrity...
  ==> Making package: lib32-kmod 25-1 (Wed Mar  7 21:45:10 CST 2018)
  ==> Retrieving sources...
    -> Found kmod-25.tar.xz
    -> Found kmod-25.tar.sign
  ==> Validating source files with md5sums...
      kmod-25.tar.xz ... Passed
      kmod-25.tar.sign ... Skipped
  ==> Verifying source file signatures with gpg...
      kmod-25.tar ... FAILED (unknown public key 9BA2A5A630CBEA53)
  ==> ERROR: One or more PGP signatures could not be verified!
  :: failed to verify lib32-kmod integrity
  [nexxuz@localhost ~] $ sudo pacman-key --recv-keys 9BA2A5A630CBEA53
  gpg: key 9BA2A5A630CBEA53: 18 signatures not checked due to missing keys
  gpg: key 9BA2A5A630CBEA53: "Lucas De Marchi <lucas.demarchi@intel.com>" not changed
  gpg: Total number processed: 1
  gpg:              unchanged: 1
  ==> Updating trust database...
  gpg: next trustdb check due at 2018-06-25
  [nexxuz@localhost ~] $