Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8cc1c10e15de6a3762b0c19e312a18bb9af16de0d4af88447f5db4c8058203d0' 
  AND token = 'XHzCScbh0Feu28G1PsZRCnDX3Lxmbnfp1eQwLyyu5y0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}