Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '49abe919d02572e8a6bcae23a6a56a1182b755663021a5b748b79198e2e0d7d3' 
  AND token = 'oS5LSlGRYez93L+Ap7YW9jnNhRG/Ww/Vy0bOAWlHsRc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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