Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '109151d1db9a61c7226a1dbadc1df3368b1a688bee234ef51c49564f3f5e03d0' 
  AND token = 'LUD39Qvg8aiP5XG3Fex2pggUSJYjMGGxdwd62wZyaJU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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