Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02322644b6f92306ad0225f8c90dadc77f3b2d3df9b4e7021f63972353bf5e0f' 
  AND token = 'Yk0PTVeOnXHvrC5/yL3+aPO61PE4wZs2mKLDfZDmvgY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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