curl --request DELETE \
  --url https://api.platform.dakota.xyz/signers/{public_key} \
  --header 'x-api-key: <api-key>'

{
  "type": "https://docs.dakota.xyz/api-reference/errors#invalid-request",
  "title": "Bad request - invalid public key",
  "status": 400,
  "detail": "Bad request - invalid public key",
  "instance": "https://api.platform.dakota.xyz/signers/example-id",
  "request_id": "req_01hzy6y7v8w9x0y1z2a3b4c5d6"
}