Issue tokens (NFT) on the XRPL as discussed in XLS-14d - https://github.com/XRPLF/XRPL-Standards/discussions/30

1-accountset.json

{
  "TransactionType": "AccountSet",
  "Account": "rIssuingAccount...",
  "SetFlag": 8
}

2-trustset.json

{
  "TransactionType": "TrustSet",
  "Account": "rReceivingHotWallet...",
  "Flags": 131072,
  "LimitAmount": {
    "currency": "4D5920415745534F4D45204E465420F09F8E8921",
	  "issuer": "rIssuingAccount...",
	  "value": "1000000000000000e-96"
  }
}

3-issue.json

{
  "TransactionType": "Payment",
  "Account": "rIssuingAccount...",
  "Destination": "rReceivingHotWallet...",
  "Amount": {
    "currency": "4D5920415745534F4D45204E465420F09F8E8921",
    "issuer": "rIssuingAccount...",
    "value": "1000000000000000e-96"
  }
}

4a-blackhole.json

{
  "TransactionType": "SetRegularKey", 
  "Account": "rIssuingAccount...", 
  "Fee": "12", 
  "RegularKey": "rrrrrrrrrrrrrrrrrrrrBZbvji"
}

4b-blackhole.json

{ 
  "TransactionType": "AccountSet",
  "Account" : "rIssuingAccount...",
  "Fee": "12",
  "SetFlag": 4
}

5a-friend-prepares-to-receive.json

{
  "TransactionType": "TrustSet",
  "Account": "rFriendToReceiveNFT...",
  "Flags": 131072,
  "LimitAmount": {
    "currency": "4D5920415745534F4D45204E465420F09F8E8921",
	  "issuer": "rIssuingAccount...",
	  "value": "1000000000000000e-96"
  }
}

5b-send-nft-to-friend.json

{
  "TransactionType": "Payment",
  "Account": "rReceivingHotWallet...",
  "Destination": "rFriendToReceiveNFT...",
  "Amount": {
    "currency": "4D5920415745534F4D45204E465420F09F8E8921",
    "issuer": "rIssuingAccount...",
    "value": "1000000000000000e-96"
  }
}