Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ad2c563da1c7abd2e1b03b068f5b06d24da5950d9cbdeedb51386076741af862' 
  AND token = 'mcuzoyXHwqUGSXzJzDd057NYkmJSFII1XwFvCepCdz0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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