Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2da9a6c82cbd66550b3110871e45264a9bca62150adcc634def5422d703c6c3d' 
  AND token = 'CqTRhmpaoj4faHSSPiAunbg7TJ9uEF6K7c8W2Cm/75k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00053

JSON explain

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