Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'de22b950517c3fe147672d049db47d46b93c4c04aff7b5d974f079ca131365a1' 
  AND token = 'jSjisKSTsyFXkAp5PU9DlS2H97spDVwkxqvX4ZwwB1A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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