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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '692d5af8d7417b718f1f95805d6e2042c818612e1dc8c080f163dceb914cc432' 
  AND token = 'NYcTpI9TB4laloijlDyGUXRraEfyHPxb0IXROFREln8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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