Paring api Metadata add custom field for extra data dict.

[hamberluo]

We need process extra data to do our own logic.

{
  "name": string,
  "description": string,
  "url": string,
  "icons": [string],
  "verifyUrl": string, // Optional
  "redirect": { // Optional
    "native": string, // Optional
    "universal": string, // Optional
  },
  "extra": {}
}

[glitch-txs]

hello could you expand on why do you need this field?