Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a246600594c90343605144f4fb519f64479e7765dd857cee86e6f2f57d6bf7c' 
  AND token = 'WtoX+SbJPEG7C35SNMs26z+c0v+raG7/NL911b93mzw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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