Create a payment initiation

curl --location 'https://api-sandbox.klavi.ai/payment/customer/v1/instant/payments' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data '{
  "clientRequestId": "String",
  "institutionId": "String",
  "initType": "String",
  "customer": {
    "identifierType": "String",
    "identifier": "String",
    "name": "String",
    "phone": "String",
    "email": "String"
  },
  "amount": "String",
  "currency": "String",
  "redirectURL": "String",
  "debtorAccount": {
    "ispb": "String",
    "issuer": "String",
    "number": "String",
    "accountType": "String"
  },
  "creditorAccount": {
    "ispb": "String",
    "issuer": "String",
    "number": "String",
    "accountType": "String",
    "holder": {
      "identifierType": "String",
      "identifier": "String",
      "name": "String"
    }
  },
  "clientMetadata": {
    "platform": "String",
    "os": "String",
    "osVersion": "String"
  }
}'