query isUserExists(
$email: String $phone: String $username: String $externalId: String
) {
isUserExists( email: $email phone: $phone username: $username externalId: $externalId )
}
query isUserExists(
$email: String $phone: String $username: String $externalId: String
) {
isUserExists( email: $email phone: $phone username: $username externalId: $externalId )
}