Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'adc2193b317b9eae085b7d5df88ac8985111298f29d895679e858b51edd87d5a' 
  AND token = 'Gvx2cX1RprvQZiW+2yaCkkAIKRzq5X8HkMm14lWttdM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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