Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '650027bd6e0418b4b396658f6a634193c23c9d87fe711f4e1b8c883a1f8ae499' 
  AND token = '3BrKNdrDCDjtx64Eem1A6SCVAmZ4BuSYrbBsHuM/6BA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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