type_url: "type.googleapis.com/google.crypto.tink.JwtRsaSsaPssPrivateKey"
# value: [type.googleapis.com/google.crypto.tink.JwtRsaSsaPssKeyFormat] {
#   version: 0
#   algorithm: PS256
#   modulus_size_in_bits: 2048
#   public_exponent: "\001\000\001"
# }
value: "\020\001\030\200\020\"\003\001\000\001"
output_prefix_type: RAW