✅ Private key ketemu di: config('snap.provider.OCBC.private_key')

=== HASIL ===
X-CLIENT-KEY: onvaOneL485
X-TIMESTAMP : 2026-10-27T02:30:23+07:00
X-SIGNATURE : eUJGEVyJlFTDdDFoYy0/DpUD9CbEaRJIkKPnHBAXrh3AJhraBAF9bzSKYLNMg+qFHrUgvxtm554tXEibHXWfIp5ZJmX1rcYK60l+qX3QOS+d5voNt77MUj8XJzZD40Jyefw/Gc/5X+SUyU3oUNQlwQZ1KKH+N68tH8tyNQenBVefUWecOZTmr38FrQfhPh+EV9QUmtKT5vtUGtzaTSbTBvGoDKxqwojMbfrhUAMiFAtWxbnZDAmpX49kDIw2iPi/4meKEw6MtUES2U6wDv1/NHJcuaNHIF6S2ZyebcmYNjSEGEOc0mWJXEv7535XjYA2PjM2mIlRFSPtvgGatW5Efw==

=== CURL ===
curl -X POST "http://sip-school.my.id/api/v1/access-token/b2b" -H "Content-Type: application/json" -H "X-CLIENT-KEY: onvaOneL485" -H "X-TIMESTAMP: 2026-10-27T02:30:23+07:00" -H "X-SIGNATURE: eUJGEVyJlFTDdDFoYy0/DpUD9CbEaRJIkKPnHBAXrh3AJhraBAF9bzSKYLNMg+qFHrUgvxtm554tXEibHXWfIp5ZJmX1rcYK60l+qX3QOS+d5voNt77MUj8XJzZD40Jyefw/Gc/5X+SUyU3oUNQlwQZ1KKH+N68tH8tyNQenBVefUWecOZTmr38FrQfhPh+EV9QUmtKT5vtUGtzaTSbTBvGoDKxqwojMbfrhUAMiFAtWxbnZDAmpX49kDIw2iPi/4meKEw6MtUES2U6wDv1/NHJcuaNHIF6S2ZyebcmYNjSEGEOc0mWJXEv7535XjYA2PjM2mIlRFSPtvgGatW5Efw==" -d "{\"grantType\": \"client_credentials\"}"