Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63fb7ed9332eedacca06f24c0f1569215149dbbe7ecc1e0434e34f5dc8116634' 
  AND token = '05B7A+54UvMbheauhmb+jJzVgAzv8+I7HevHyeQkxOc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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