Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd724987438e62d0f43ee5b627f63cb21372f2fc17c23d517b3591e8c9640120e' 
  AND token = 'pt6X/qXBEcbPOhOTNxN0SL3Eln3daHYq2G4h4kA6gGI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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