Register Signed Key

curl --request POST \
  --url https://api.neynar.com/v2/farcaster/signer/developer_managed/signed_key \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "app_fid": 18949,
  "deadline": 1693627665,
  "public_key": "0x3daa8f99c5f760688a3c9f95716ed93dee5ed5d7722d776b7c4deac957755f22",
  "signature": "0xe5d95c391e165dac8efea373efe301d3ea823e1f41713f8943713cbe2850566672e33ff3e17e19abb89703f650a2597f62b4fda0ce28ca15d59eb6d4e971ee531b"
}'

{
  "public_key": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
  "status": "pending_approval",
  "signer_approval_url": "<string>",
  "fid": 3
}