Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1ed282895f18e2557d9ecabc189949c7ef731317607b31c1fa7f1fdd5b20c73f' 
  AND token = 'RjWF3PZvEF93hpzuLp2CSOrrAIjqrilwhZCotHR1n98=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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