encryptedSymmetricKey

@SerialName(value = "jwe")
@Serializable(with = JweEncryptedSerializer::class)
val encryptedSymmetricKey: JweEncrypted? = null(source)

RFC 7800: When the key held by the presenter is a symmetric key, the encryptedSymmetricKey member is an encrypted JsonWebKey encrypted to a key known to the recipient using the JWE Compact Serialization containing the symmetric key.