Getting 504 Gateway Timeout error when calling https://abhasbx.abdm.gov.in/abha/api/v3/enrollment/auth/byAbdm

Hi,
I am getting gateway timeout response as below when calling this api to verify mobile OTP - https://abhasbx.abdm.gov.in/abha/api/v3/enrollment/auth/byAbdm

Response body:
{

"error": {

    "code": "ABDM-1220",

    "message": "Sorry, Unable to process your request at this time. Please try again later."

}

}

My request body looks like this:
{

“scope”: [

“abha-enrol”,

“mobile-verify”

],

“authData”: {

“authMethods”: [

“otp”

],

“otp”: {

“timeStamp”: “{{currentTimestamp}}”,

“txnId”: “1d08e8e8-d7ad-4f71-83ce-ed6067820072”,

“otpValue”:

“{{encryptedOtpValue}}”

}

}

}