Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b11ebc928493d82b349a55840d38fd892fa0b0faf65f2076e2e18aacfbc412e' 
  AND token = 'FNJT1Z5CSLPuKt5KYjoUp4S50kPHYskpSgthqwHPp90=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00108

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}