{"algorithm":"Ed25519","key_id":"08d4bb3aacab4876","public_key_base64url":"05R786jDtraQggOSjA3cJiLln6aQFzXU6UY3sZ-yJZU","public_key_pem":"-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEA05R786jDtraQggOSjA3cJiLln6aQFzXU6UY3sZ+yJZU=\n-----END PUBLIC KEY-----\n","how_to_verify":"Ed25519-verify `signature` (base64url) over the exact UTF-8 bytes of `payload` with this public key. Or POST {payload, signature} to /receipts/verify."}